1. In an AC generator, a coil with N turns of wire spins in a magnetic field. Of the following choices, which does not cause an increase in the emf generated in the coil? (a) replacing the coil wire with one of lower resistance (b) spinning the coil faster (c) increasing the magnetic field (d) increasing the number of turns of wire on the coil

Q: The current in a coil changes steadily from 1.3 A to 2.5 A in the opposite direction, in 0.12 s. The…

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Q: Which particular part of a the motor can be used to identify an "AC motor? O a Split rings O b.…

A: Which particular part of the motor can be used to identify AC motor ?

Q: Q1/ The self-inductance of a coil whose number of turns is N 500 = is L = 0.25. If 609 of the flux…

A: Given: N1=500 turnsL1=0.25 HN2=10,000 turnsφ2=60% φ1

Q: The primary coil of a step-up transformer is connected to a dc power supply via a switch. If the…

A: 1. The DC model of the transformer is just the winding resistors. Therefore, the primary current is…

Q: 1. A simple AC generator consists of an N = 10 turn coil of area A = 1200 cm? which rotates at a…

A: The number of turns, N is 10. The area of the coil, A is 1200 cm2. The frequency, f is 60 Hz. The…

Q: 73 loops coil of wire 0.3m x 0.2m that has a magnetic field increases from -3T to5T in 0.15s that is…

A: 73 loops coil of wire 0.3m x 0.2m that has a magnetic field increases from -3T to5T in 0.15s that is…

Q: 9. The following are factors involved in the induced emf of a coil of wire EXCEPT A. The induced emf…

A: The induced EMF is defined as the generation of a voltage or potential difference in a coil due to a…

Q: (6) The generator coil shown in Figure is rotated through one-fourth of a revolution (from 9 = 0o to…

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Q: In an AC generator, a coil with N turns of wire spins in a magnetic field. Of the following choices,…

A:

Q: The maximum strength of the Earth’s magnetic field is about 7.0 x 10-5 T near the south magnetic…

A: Magnetic field = Frequency = f = 60 Hz Angular frequency = Area per turn = A = 0.016 m2 RMS…

Q: 7. Which of the following statements can describe the process of the law of induction? A. Increase…

A: According to law of induction:e=-dϕdt  =-NddtB.Ae=NddtBAcoswte=NBAwsinwt

Q: A transformer inside the power supply for a portable CD player has 500 turns in the primary coil and…

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Q: 3. A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of…

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Q: A 73 loops coil of wire 0.3m x 0.2m that has a magnetic field increases from -3T to 5T in 0.15s that…

A: No.of turns of coil, N = 73 loops Area of the coil, A = 0.3×0.2 = 0.06 m2 Initial magnetic field, B1…

Q: P8 The current carried by a long straight conductor is given as I = 103 A/s-t as a function of time.…

A: Given : Current carried by long conductor, I = 103 A/s Distance between conductor and square loop, L…

Q: 1. A wire is wound around a square frame 0.60 m to form a coil with 12 turns. The frame is oriented…

A: The formula for the magnetic flux is: From Faraday’s the formula for the induced emf is:

Q: An ac electrical generator is made by turning a flat coil in a uniform constant magnetic field of…

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Q: 30) A circular coil of copper wire is lying flat on a horizontal table. A bar magnet is held above…

A: As we know Lenz's law states that the direction of induced current in the conductor by changing…

Q: 2. A series wound DC motor with its rotor and field coils connected in series has the following…

A: Given : Resistance of the field coil, RFC=10 ohm Resistance of rotor coil, Rr = 5 ohm  Power supply,…

Q: 2) In the high-voltage circuit of the X-ray generator, a transformer is used to supply a 60000 V to…

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Q: rectangular wire loop of side 4 cm and 6 cm has 50 turns uniformly from 0.1 T to 0.3 T in 60 ms. Can…

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Q: . It is rotated at 85.0 Hz in a uniform field of 0.800 T. Calculate the following quantities as…

A: Side of square loop 12.0 cm Frequency 85.0 Hz Magnetic field  0.800 T To find 1) the power delivered…

Q: 2. A bar magnet shown moves toward a single loop of wire of diameter 3.2 cm. The average induced emf…

A: Given: Diameter of loop, d=3.2 cm Time duration, ∆t = 0.3 s Average induced emf,ε=1.8×10-4 V   To…

Q: 9. As a coil in an AC generator rotates in a magnetic field, it reaches the position shown in the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A coil with 651 turns of wire and a cross sectional area of 0.00560 m2 is rotated about its diameter…

A: Angular velocity (w) = 2720 RPM  W = 2720×2π/60 rad/s  W = 284.69 rad/s

Q: 6. Faraday's law of induction states that A. the direction of the induced emf is such that it…

A: 6. Faradays law states that Let's check each option one by one A. The direction of the induced EMF…

Q: 1. What is Faraday's law of mutual induction? When an emf is produced in a coil because of the…

A: Suppose two coils are coupled with each other. Let the current in the first coil changes with time…

Q: An ac electrical generator is made by turning a flat coil in a uniform constant magnetic field of…

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Q: 8. A coil with an inductance of 1.5 H and a resistance of 10 Ais suddenly connected to an ideal…

A: Given data The inductance of the coil is L = 1.5 H. The resistance of the coil is R = 10 Ω. The emf…

Q: 12.A coil with five series connected turn rotates at a speed of 1200 rpm. That flux per pole is 3 x…

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Q: A bicycle generator rotates at 1,975 rad/s, producing a 17.5 V peak emf. It has a 46-turn, 1.00 by…

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Q: A simple AC generator consists of 10 turns of coils with an area of 1 000 cm2. It rotates at a…

A: Concept used is rate of change of magnetic flux gives emf in coil

Q: C Chegg India - Expert Lo X Dhttps://experts.cheggindia.com/login/ Subject test Note:- You are…

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Q: 5. A simple LC circuit consists of a 3.3 H inductor and an 840 pf capacitor that initially carries a…

A: 5. (a) Find the energy stored in the capacitor. U=12Q2C=12105 μC10-6 C1 μC2840 pF10-12 F1 pF=6.56 J…

Q: 9. As a coil in an AC generator rotates in a magnetic field, it reaches the position shown in the…

A: Solution: The situation can be seen that as time t=0 the moment of the flux varying will be given…

Q: A bicycle generator rotates at 1,800 rad/s, producing a 15.5 V peak emf. It has a 45-turn, 1.00 by…

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Q: Electromagnetic induction can be used to generate electricity for our homes. In fact most of the…

A: (a) Electrical power (P) may be expressed in terms of voltage (V) and current (I) as follows:   P=VI…

Q: 3. A solenoid consists of 400 turns per centimeter and the radius of windings is 1.382X102 m.…

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Voltage Across Inductor

An actor is a passive electrical component that consists of a coil bent in the form of wire which uses electromagnetism to produce electric current through the coil. When the electric current flows through a conductor that is the coil, a magnetic flux is developed around the conductor. This flow of current through the coil creates a magnetic field based on Fleming's Right-hand thumb rule. If there is any decrease in the current passing through the inductor, then the magnetic field will also decrease and energy is released through the generation of electric current. There is also a secondary voltage inducing in the same coil due to the magnetic flux, since it opposes any changes in the electric current flowing through the circuit. An inductor is also called choke, coil, or solenoid. A choke is designed to block certain frequencies when the DC current passes. A winding coil is coated with insulation to give extra insulation and protect the circuit. They are usually tightly wrapped around a central core which is cylindrical in nature so that the magnetic flux can be induced. The solenoid is a three-dimension coil that is used to exhibit electromagnetism when the magnetic field is developed due to the current flowing through the coil. The sign convention of the inductor is the same as the power dissipating device. When the current flows into the positive side of the voltage across the inductor, the value is positive and the inductor dissipates power whereas when the inductor releases the power back to the circuit, the current has a negative sign convention.