The use of a slot in the leading edge of the wing enables the aeroplane to fly at a slower speed because:A) it changes the camber of the wing.B) the laminar part of the boundary layer gets thicker.C) it decelerates the upper surface boundary layer air.D) it delays the stall to a higher angle of attack.
Answers
The use of a slot in the leading edge of the wing is an effective way to increase the performance of an aircraft. One of the significant advantages of using a slot is that it enables the plane to fly at a slower speed. This is due to the fact that the slot changes the camber of the wing, which means that the shape of the wing is altered.
The correct option is D
When the wing's shape changes, the air flowing over the wing's surface will generate more lift, allowing the plane to fly at a slower speed.Additionally, the slot helps to thicken the laminar part of the boundary layer, which is the layer of air that flows over the wing's surface. The thicker boundary layer helps to reduce drag, which in turn allows the plane to fly more efficiently.Moreover, the slot decelerates the upper surface boundary layer air, which reduces the airflow separation and delays the stall to a higher angle of attack. This means that the aircraft can fly at a higher angle of attack before stalling, which is when the wings can no longer generate enough lift to keep the plane in the air.In conclusion, the use of a slot in the leading edge of the wing is a useful technique to enable an aircraft to fly at a slower speed. This is achieved through changes in the wing's shape, thicker laminar boundary layer, reduced drag, and a higher angle of attack before stalling.For such more question on technique
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Related Questions
a what type of contact is used with the High pressure switch?
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A runner ran a 600 m race in 2 min 17 seconds. Calculate his average speed in m/sec.
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A gear train has two gears. The driver gear has 8 teeth and a diametral pitch of 6 teeth/inch. the follower gear has 24 teeth. What is the diametral pitch of the follower gear?
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Answer:
18 teeth/inch
Explanation:
Given that: i. driver gear has 8 teeth and diametral pitch of 6 teeth/inch.
ii. follower gear has 24 teeth.
Let the followers diametral pitch be represented by x.
Then,
8 teeth ⇒ 6 teeth/inch
24 teeth ⇒ x teeth/inch
So that;
x = \(\frac{24 x 6}{8}\)
= \(\frac{144}{8}\)
= 18 teeth/inch
The diametral is 18 teeth/inch
what is the voltage in the secondary winding of the transformer if the primary voltage is 120v and the turns ratio is 6:1
Answers
Secondary voltage / Primary voltage = Secondary turns / Primary turns
We know that the primary voltage is 120V and the turns ratio is 6:1, which means that for every 6 turns in the secondary winding, there is 1 turn in the primary winding.
Using the turns ratio formula, we can solve for the secondary voltage:
Secondary voltage / 120V = 6 / 1
Secondary voltage = 720V
Therefore, the voltage in the secondary winding of the transformer would be 720V.
would you expect significant coring in alloys of (a) cu-10ni; (b) cu-30zn; (c) al- 5mg? support your judgment with quantitative statements
Answers
Cu-10Ni. Cu-Ni alloys, which are composed of copper and nickel with or without other elements, can or may not experience coring.
Why is corrosion resistant copper-nickel?The production of a protective oxide film on the metal surface is what gives Cu-Ni alloys their excellent corrosion resistance in sea water. The alloys' initial contact with seawater is altered as the coating forms naturally and fast.
What makes Cu-Ni 90 10 and 70 30 different from one another?The two primary copper-nickel alloys are 70/30, which contains 70% copper and 30% nickel, and 90/10, which has 90% copper and 10% nickel. Although the 90/10 will work well in the majority of applications and is generally more extensively used since it is less expensive, the 70/30 is stronger and has higher seawater flow resistance.
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What are the differences between bulk deformation processes and sheet metal processes?.
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Bulk deformation processes are applied to achieve large deformation of metal materials, resulting in a change in their overall shape. On the other hand, sheet metal processes primarily affect the surface layers of metal sheets to achieve a specific shape, size, and finish.
This fundamental difference results in several other notable differences between these two processes, which are discussed below.Bulk deformation processes:This process is used to transform the overall shape of metal materials. The material is placed in a die and subjected to high stress and pressure to achieve the desired deformation. This process often involves heating the metal to high temperatures to enhance its ductility. This process is also referred to as "forging" or "forming" processes.
Some of the common bulk deformation processes include:
Forging: This process is applied to metal materials at high temperatures to change their overall shape.
Rolling: This process involves reducing the thickness of a metal material by compressing it between two rollers.
Extrusion: This process is used to produce uniform cross-section shapes and is applied to create pipes, tubes, and other structures.
Sheet metal processes:This process primarily affects the surface of metal sheets, resulting in a specific shape, size, and finish. Sheet metal is thinner than bulk metals, making it easy to shape and deform without heating it. Sheet metal is used in many applications, such as building facades, ductwork, automotive bodies, and machine casings.
Some of the common sheet metal processes include:
Cutting: This process is used to cut a piece of sheet metal to the desired shape and size.
Bending: This process is applied to a sheet metal workpiece to achieve a specific shape.
Rolling: This process is used to reduce the thickness of sheet metal while maintaining its shape and size.
Drawing: This process is applied to sheet metal to create specific shapes, such as cups or cans.
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what are the sources of error in moment experiment
Answers
Answer:
1. Rounding numbers.
2. Imperfection of the instruments used.
3. Environment where the experiment was made.
4. Human error.
Explain how to properly engage the safety latches on the Stan Design Pit Jack.
Answers
The way to properly engage the safety latches on the Stan Design Pit Jack is:
Connect the hydraulic jack.Make sure it is properly lubricated.Ensure that the rolling bridge jack is well fused together.Use the machine.What is the Stan Design Pit Jack?This refers to the machination which makes use of pit jacks to execute tire rotation in a fast lube pit.
We can note that based on the design, this machine is put in the pit of a car and then rolls back and forth and perform their operations on both the front and real axles.
Hence, it is important to note that the safety latches are designed to prevent work accidents and it is important to properly lubricate the parts to prevent damage.
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Which of the following best describes "sleep-driving"?
A. Driving while sleepy.
B. It is similar to sleep-walking.
C. Dreaming of driving, while sleeping.
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The statement It is similar to sleep-walking Option(b) is the one that best describes "sleep-driving".
What does it mean to drive while fatigued?Driving while fatigued or drowsy is known as sleep driving. This typically occurs when a driver hasn't had enough sleep, but it can also occur as a result of untreated sleep disorders, drug use, alcohol consumption, or shift employment.
According to the Division of Sleep Medicine at Harvard Medical School, there are 250,000 drivers who consistently fall asleep behind the wheel in the United States. In a public survey conducted by the National Sleep Foundation, 54% of adult drivers admitted to driving while drowsy in the previous year, with 28% admitting to actually falling asleep behind the wheel.
The National Highway Traffic Safety Administration estimates that tired driving causes more than 100,000 accidents, resulting in around 6,550 fatalities.
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The assertion It is comparable to sleepwalking. Option (b) best describes "sleep-driving"
What does it mean to drive while fatigued?Driving while fatigued or drowsy is known as sleep driving. This typically occurs when a driver hasn't had enough sleep, but it can also occur as a result of untreated sleep disorders, drug use, alcohol consumption, or shift employment.According to the Division of Sleep Medicine at Harvard Medical School, there are 250,000 drivers who consistently fall asleep behind the wheel in the United States. In a public survey conducted by the National Sleep Foundation, 54% of adult drivers admitted to driving while drowsy in the previous year, with 28% admitting to actually falling asleep behind the wheel.The National Highway Traffic Safety Administration estimates that tired driving causes more than 100,000 accidents, resulting in around 6,550 fatalities.To learn more about sleep-driving refer to
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True or false?Inventory-risk costs are a form of carrying costs.
Answers
or...................
Answer:
i believe it is true
Explanation:
Greek engineers had the unenviable task of moving largecolumns from the quarries to the city.One engineer,Chersiphron, tried several different techniques to do this. Onemethodwas to cut pivot holes into the ends of the stone andthen use oxen to pull the column. The 5-ft diameter columnweighs 14,000 lbs, andthe team of oxen generates a constantpull force of 2,000 lbs on the center of the cylinder,G. Knowingthat the column starts from rest and rolls without slipping,determine:(a) the velocity of its center,G,after it has moved7ft,and (b) the minimum static coefficient of friction that will keepit from slipping.
Answers
Answer:
yea
Explanation:
okkudjeheud email and delete the electronic version of this communication
Raven is adding FSMO roles to domain controllers in the domain1.com forest. The forest contains a single domain and three domain controllers, DC1, DC2, and DC3. DC1 contains a copy of the global catalog, and all three domain controllers have the latest version of Windows Server 2019 installed. Which of the following is a best practice that Raven should follow? She should use DC2 or DC3 as the Domain Naming Master. B She should create the Domain Naming Master role on DC1. She should create three Domain Naming Master roles, one for each domain controller. She does not need to create the Domain Master role because DC1 contains a copy of the global catalog.
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The best practice that Raven should follow is to use DC2 or DC3 as the Domain Naming Master of the following is a best practice that Raven should follow. The correct option is A.
The management of the addition or deletion of domains from the forest is the responsibility of the Domain Naming Master. For redundancy and fault tolerance, it is advised to split the FSMO roles among several domain controllers.
Since DC1 already has a copy of the global catalog, it is advantageous to choose a different domain controller (DC2 or DC3) as the Domain Naming Master to disperse the workload and guarantee high availability. This ensures that the forest's operations may continue even if one domain controller goes offline and prevents the creation of a single point of failure.
Thus, the ideal selection is option A.
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in the aim content planning process, you develop your information and ideas by
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The aim of the content planning process is to create a content strategy that aligns with your organization's goals and objectives. This process involves developing information and ideas through research, analysis, and creative thinking.
The process typically includes the following steps:
1. Define your audience: In this step, you need to identify the audience you want to target with your content. This can be done by analyzing your existing customer base or by conducting market research to understand the needs and interests of your target audience.
2. Set goals and objectives: You need to establish clear goals and objectives for your content marketing efforts. These goals should be specific, measurable, achievable, relevant, and time-bound (SMART). For instance, your goal may be to increase brand awareness, generate leads, or boost sales.
3. Develop a content strategy: Once you have identified your audience and set your goals, you need to develop a content strategy that will help you achieve these objectives. This involves identifying the types of content you will create, the channels you will use to distribute it, and the key messages you want to communicate.
4. Create a content calendar: A content calendar is a schedule that outlines the topics, formats, and channels you will use to distribute your content over a specified period. This helps ensure that your content is timely, relevant, and consistent.
5. Execute your plan: Once you have developed your content plan, you need to execute it by creating and publishing your content. You should also track your progress and adjust your strategy as needed to ensure that you are meeting your goals.
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6 A series of vane shear tests has been performed in a stratum of inorganic clay that has a plasticity index of 50. The vane had a diameter of 50 mm and a height of 100 mm. The test results were as follows: Depth (m) Torque at Failure (N-m) 3.4 12.7 4.1 18.1 5.0 15.8 6.6 20.1 Compute the undrained shear strength, su, for each test, then combine this data to determine a single su value for this stratum.
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A shaft of a circular cross section is supported by two housings at B and C. The shaft
is subjected to static loads: concentrated force N applied by gear D and an applied torque T. The yielding strength of the shaft is Sy, and the diameter of the shaft is d. For circular cross sections, | = nd*/64, J = md*/32. The length of the shaft is L. Transverse shear stress is ignored here.
1) Draw the bending moment diagram of the shaft. Specify the location of the weakest (most dangerous) cross section A on bending moment diagram.
2) Draw the weakest point(s) on cross section A.
3) Determine the von-Mises stress at the weakest point(s).
4) Determine the factor of safety n based on Distortion Energy Theory.
Answers
Answer:
1) The bending moment diagram of the shaft is shown in Figure 1. The weakest cross section A is located at the point where the bending moment is maximum.
2) The weakest point on cross section A is located at the point where the bending moment is maximum.
3) The von-Mises stress at the weakest point is given by:
σ = M/I
where M is the bending moment and I is the moment of inertia of the cross section.
4) The factor of safety n is given by:
n = Sy/σ
where Sy is the yield strength of the shaft and σ is the von-Mises stress at the weakest point.
Explanation:
Hope this helps!
Evaporation The evaporation from Mono Lake can be estimated with recorded evaporation data at Cain Ranch which has a 4-foot (1.22 meter) diameter Class A galvanized land pan. The following pan data was recorded at Cain Ranch:
Volume of water needed to recharge the Class A evaporation pan (corrected for precipitation): May 127.6 liters (L) August 279.9 L June 194.6 L September 187.0L July 356.2L October 126.8 L Calculate the pan evaporation (m) for this period (May-October).
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Total Pan Evaporation (m) for the period (May-October) is 12.941 m. May: 1.276 m, June: 1.946 m, July: 3.562 m,August:2.799 m,September: 1.87 m,October: 1.268 m.
What is Evaporation?Evaporation is the process by which a liquid is converted into a gas or vapor. The liquid absorbs heat from its surroundings and releases it into the atmosphere, which causes it to turn into a vapor. This process is a type of phase transition, in which the molecules of the liquid gain enough kinetic energy to overcome the attractions between them and become a gas. Evaporation occurs when a liquid is exposed to air or other gases, or when the temperature of the liquid is raised. It is the reverse of condensation, which occurs when a gas is cooled and turns into a liquid.
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how do you know when an equation is (In)
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What lives at layer 3 (the network layer) of the OSI model?
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Layer 3 of the OSI (Open Systems Interconnection) model, known as the network layer, is responsible for providing end-to-end communication between hosts in different networks.
The network layer is responsible for routing and forwarding data packets across different networks, as well as handling addressing and logical connectivity.
The main entities that live at layer 3 (the network layer) of the OSI model include:
Routers: Routers are network devices that operate at the network layer and are responsible for forwarding data packets between different networks. They use routing tables and protocols to determine the best path for data packets to reach their destination across multiple networks.
IP (Internet Protocol): IP is a network layer protocol that provides logical addressing and routing functionality. It is responsible for assigning unique IP addresses to devices on a network, and for routing data packets based on those IP addresses.
ICMP (Internet Control Message Protocol): ICMP is a network layer protocol that is used for sending error messages and operational information about network conditions. It is often used for diagnostic purposes, such as ping and traceroute, to check the connectivity and status of network devices.
Network Addressing: Layer 3 is also responsible for assigning and managing IP addresses, which are used to uniquely identify devices on a network.
Subnetting and VLANs: Layer 3 may also involve subnetting and VLANs (Virtual Local Area Networks), which are used for network segmentation and management to improve efficiency and security.
In summary, layer 3 of the OSI model includes routers, IP, ICMP, network addressing, and other protocols and technologies that are responsible for routing, addressing, and logical connectivity in a network.
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Find at the terminals of the circuit
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Additional Problem 8-14: Find a grammar for the following language:
{abncmdeddefm+1gn+2hh | n,m ∈ ℕ}
Additional Problem 8-15: Find a grammar for the following language:
{abncn+3dedd(ef)m | n,m ∈ ℕ}
Additional Problem 8-16: Find a grammar for the following language:
{abncn+3dp*2edp+1dq(ef)m j efq | n,m,p,q ∈ ℕ}
Answers
In these problems, we have provided grammars for three different languages. These grammars can be used to generate all possible strings in the respective languages.
Additional Problem 8-14:
Grammar for the language {abncmdeddefm+1gn+2hh | n,m ∈ ℕ}:
S → abncM
M → deN
N → deN | defgH
H → hh | H
Here, S is the start symbol, and M, N, and H are non-terminals.
The production rules define the language as follows:
Starting with S, we add the symbols abnc to the beginning of the string. Then, we add m instances of de to get to N, where we can either add another de or add defg and continue to H. H represents any number of instances of hh.
Additional Problem 8-15:
Grammar for the language {abncn+3dedd(ef)m | n,m ∈ ℕ}:
S → abnB
B → Cded
C → Cc | ε
D → (ef) | D
Here, S is the start symbol, and B, C, and D are non-terminals.
The production rules define the language as follows:
Starting with S, we add the symbols abn to the beginning of the string. Then, we add three instances of c to get to B, where we add ded and continue to C. C represents any number of instances of c, and D represents any number of instances of (ef).
Additional Problem 8-16:
Grammar for the language {abncn+3dp*2edp+1dq(ef)m j efq | n,m,p,q ∈ ℕ}:
S → abnAejB | abnC
A → Aa | ε
B → edpBq | (ef)q
C → Cc | ε
Here, S is the start symbol, and A, B, and C are non-terminals.
The production rules define the language as follows:
Starting with S, we can either add the symbols abn and ej to the beginning of the string and continue to B, where we add edp and q instances of (ef), or we can add the symbols abn to the beginning of the string and continue to C. A represents any number of instances of a, and C represents any number of instances of c.
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The Aluminum Electrical Conductor Handbook lists a dc resistance of 0.01558 ohm per 1000 ft at 208C and a 60-Hz resistance of 0.0956 ohm per mile at 508C for the all-aluminum Marigold conductor, which has 61 strands and whose size is 1113 kcmil. Assuming an increase in resistance of 2% for spiraling, calculate and verify the dc resistance. Then calculate the dc resistance at 508C, and determine the percentage increase due to skin effect.
Answers
Answer:
a) 0.01558 Ω per 1000 feet
b) 0.0923 Ω per mile
c) 3.57%
Explanation:
a) Calculate and verify the DC resistance
Dc resistance = R = р \(\frac{l}{A}\)
for aluminum at 20°C
р = 17 Ωcmil/ft
hence R = 17 * 1000 / ( 113000 ) = 0.01527 Ω per 1000 feet
there when there is an increase in resistance of 2% spiraling
R = 1.02 * 0.01527 = 0.01558 Ω per 1000 feet
b) Calculate the DC resistance at 50°C
R2 = R1 ( \(\frac{T+t2}{T+ t1}\) )
where ; R1 = 0.01558 , T = 228 , t2 = 50, t1 = 20 ( input values into equation above )
hence R2 = ( 0.01746 / 0.189 ) Ω per mile = 0.0923 Ω per mile
c ) Determine the percentage increase due to skin effect
AC resistance = 0.0956 ohm per mile
Hence; Increase in skin effect
= ( 0.0956 -0.0923 ) / 0.0923
= 0.0357 ≈ 3.57%
How large a surface area in units of square feet will 1 gallon of paint cover if
we apply a coat of paint that is 10 millimeters thick
Answers
Answer:
40.7465 \(ft^2\)
Explanation:
The first step for solving this problem is to convert the units from gallons to cubic feet and from millimeters to cubic feet:
1 gallon = 0.133681 cubic feet
10 mm = 0.001 m = 0.0032808 ft
The second step is to divide the volume (the gallon of paint) by the coat thickness. This returns the area.
\(A = \frac{Volume}{thickness}=\frac{0.133681ft^3}{0.0032808ft}=40.7465 ft^2\)
This is the approximate area that the gallon of paint will be able to cover.
What is the output? for num in range(3): print (num + 5)
Answers
Answer: 5 6 7
Explanation:
you can run this in python and get this result
The output for the given program is: 5 6 7
What is Python Programming Language?This refers to the high-level language that was created and is used for data structures due to its OOP (object-oriented programming).
Hence, this python code asks for an array of numbers in the range of 3 and when that is found, it should make a display of the number and increment it.
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The gear with the least number of teeth is called the
Answers
Nate needs to replace the cable to his lamp. He is stripping it to connect it to the termils. What should he remember to do with the knife
Answers
Answer: i got you its d
Explanation:had the smae question as you
Tech a says you should push the wrench when braking a fastener loose. Tech b says that you should pull the wrench when braking a fastener loose. Who is correct?
Answers
Answer:
tech b because gut feeling
Explanation:
Using multiple 4M X 8 RAM chips (see below) plus a decoder, construct the block diagram of a 16M * 16 RAM system. Hint: 1 million = 220. A) [8 pts] Please answer the following questions. How many 4M 8 RAM chips are needed? How many address lines does the memory system require? How many data lines does the memory system require? What kind of address decoder is required? B) [7 pts] Now design the system below. Be sure you label the memory system inputs, Addr, R/W, and MemSel, and the system's outputs Do-Dis. Also label bus widths, and inputs and outputs of any required decoders. Put a star on the chips containing memory location 0. You can draw the circuit on a white paper using a ruler, and then, take a photo of it. Next, you can insert the photo here. Ao - A21 4 MX 8 CS R/W Do-D
Answers
The 16M * 16 RAM system requires 4 4M * 8 RAM chips. It requires 24 address lines and 16 data lines. The memory system requires a decoder.
How many 4M * 8 RAM chips are needed for a 16M * 16 RAM system?A 16M * 16 RAM system can be constructed using 4 4M * 8 RAM chips. Each chip provides 4 million memory locations, and when combined, they offer a total of 16 million memory locations. The system requires 24 address lines to access these memory locations, as 24 address lines can represent 2^24 (16 million) unique memory addresses.
Additionally, 16 data lines are needed to read or write data from or to the RAM system. To select the appropriate memory chip, an address decoder is required. The decoder takes the address lines as input and activates the chip corresponding to the specified memory location. By employing these components, a 16M * 16 RAM system can be effectively designed and implemented.
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What is Cloud computing
Answers
Answer:
the practice of using a network of remote servers hosted on the internet to store, manage, and process data, rather than a local server or a personal computer.
Explanation:
there u go
Compute: z=∣y∣ ∣x∣
Ex: If the input is 2.04.0, then the output is: 16.0 #include #include #include using namespace std; int main() I double x; double y; double z; cin >x; cin ≫y; z=fabs(y,x); cout ≪ fixed ≪ setprecision(1); // setprecision(1) outputs z with 1 decimal place. cout ≪
Answers
Given:To Compute the absolute value of the product of two inputs. The input values are x and y.The output values is z.Solution: Absolute value means to remove the negative sign of the value and make it positive.
Absolute value of x is denoted by |x|.Absolute value of y is denoted by |y|.Absolute value of x*y = |x|*|y|.The mathematical formula of Absolute value of x*y = |x|*|y|.The mathematical formula of absolute value is given as-If x is greater than 0 then the absolute value is xIf x is less than 0 then the absolute value is -x.
We have to find the absolute value of x*y. So we can use the formula of absolute value of x*y = |x|*|y|We are given two inputs in the program i.e x and y.The absolute value of x is computed using function fabs(x).The function fabs(x) takes one parameter i.e x and returns the absolute value of x.
The absolute value of y is computed using function fabs(y).The function fabs(y) takes one parameter i.e y and returns the absolute value of y. The absolute value of x*y is computed by z=fabs(x*y).
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Can someone please help me the answer is supposed to be A but I don’t know why
Answers
We can see here that the element in the circuit that is possibly a resistor is Element B.
What is a resistor?A resistor actually known to be a electrical component or device that has two terminals through which current enters and leaves. A resistor is known to limit or regulate the flow of electrical current in an electronic circuit. Resistors are known to be used in order to also provide a kind of specific voltage for a device that is active like a transistor.
Resistors are used in electrical and electronics in order to control the flow of current, reduce current, divide voltages, adjust the level of signals and terminate transmission lines. It is used for other purposes in the electronics field.
We see here that element B selected above is a resistor. The arrow on the head is pointing downward which indicates that current is entering.
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