During a 74-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 6.6-mA current in anearby secondary coil. The secondary coil is part of a circuit in which the resistance is12 Q. The mutual inductance between the two coils is 3.2 mH. What is the change in the primary current?Alp=

Answered: Image /qna-images/answer/b5772d5e-4eb5-4093-828d-5f91e5341709.jpg

Answered: During a 74-ms interval, a change in…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter23: Faraday’s Law And Inductance

Section: Chapter Questions

Problem 10CQ

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A 75-turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 radius in a 1.25 T field, starting with the plane of the coil parallel to the field. (a) What is the peak emf? (b) At what time is the peak emf first reached? (c) At what time is the emf first at its meet negative? (d) What is the period of the AC voltage output?
An emf of 0.40 V is induced across a coil when the current through it changes uniformly from 0.10 to 0.60 A in 0.30 s. What is the self-inductance of the coil?
A coil with a self-inductance of 2.0 H carries a current that varies with time according to I(t) = (2.0 A)sin 120t . Find an expression for the emf induced in the coil.
A solenoid 50 cm long is wound with 500 turns of wire. The cross-sectional area of the coil is 2.0 cm2. What is the self-inductance of the solenoid?
A transformer is used to supply a 12-V model train with power from a 110-V wall plug. The train operates at 50 W of power, (a) What is the rms current in the secondary coil of the transformer? (b) What is me rms current in the primary coil? (c) What is the ratio of the number of primary to secondary turns? (d) What is the resistance of the tram? (e) What is the resistance seen by the 110-V source?
A coil with a self-inductance of 3.0 H and a resistance of 100 2 carries a steady current of 2.0 A. (a) What is the energy stored in the magnetic field of the coil? (b) What is the energy per second dissipated in the resistance of the coil?
The 335-kV ac electricity from a power transmission line is fed into the primary winding of a transformer. The ratio of the number of turns in the secondary winding to the number in the primary winding is Ns/Np=100 . (a) What voltage is induced in the secondary winding? (b) What is unreasonable about this result? (c) Which assumption or premise is responsible?
A toroidal coil has a mean radius of 16 cm and a cross-sectional area of 0.25 cm2; it is wound uniformly with 1000 turns. A second toroidal coil of 750 turns is wound uniformly over the first coil. Ignoring the variation of the magnetic field within a toroid, determine the mutual inductance of the two coils.
During a 58-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 5.5-mA current in a nearby secondary coil. The secondary coil is part of a circuit in which the resistance is 12 02. The mutual inductance between the two coils is 3.2 mH. What is the change in the primary current? Alp=
During a 68-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 4.1-mA current in a nearby secondary coil. The secondary coil is part of a circuit in which the resistance is 12 2. The mutual inductance between the two coils is 3.2 mH. What is the change in the primary current?
The mutual inductance between two coils is 3.25 mH. A changing current in the primary coil resulted in a current of 5.45 mA in a secondary coil with a resistance of 9 ohms. What is the rate of change in the primary coil?
An emf of 5.7 x 10 v is induced in a coil while the current in a nearby coil is decreasing at a rate of 1.7 A/s. What is the mutual inductance of the two coils (in H)? 9.89E-3 X H

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