Explanation Write the equation for the time constant. τ = L R Here, L is the inductance of the coil and R is the resistance of the wire. Since the wire has reasonable resistance, a few seconds constitutes many time constants. The resistance of the wire does not change. The current depends on the resistance and not on the inductance. Hence, the inductance of the coil does not affect the current in the coil. As a result, the current does not change. Conclusion: The current in the first coil is not four times that of the second coil

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN: 9781133104261

Author: Raymond A. Serway, John W. Jewett

Publisher: Cengage Learning

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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…

Question

Chapter 23, Problem 2OQ

To determine

The comparison between the currents in the first and the second coil

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Principles of Physics: A Calculus-Based Text

Ch. 23.1 - A circular loop of wire is held in a uniform...Ch. 23.1 - Prob. 23.2QQ Ch. 23.2 - You wish to move a rectangular loop of wire into a...Ch. 23.2 - Prob. 23.4QQ Ch. 23.3 - Prob. 23.5QQ Ch. 23.4 - In a region of space, a magnetic field is uniform...Ch. 23.6 - Prob. 23.7QQ Ch. 23.6 - Prob. 23.8QQ Ch. 23.7 - Prob. 23.9QQ Ch. 23 - Prob. 1OQ

Ch. 23 - Prob. 2OQ Ch. 23 - Prob. 3OQ Ch. 23 - A circular loop of wire with a radius of 4.0 cm is...Ch. 23 - A rectangular conducting loop is placed near a...Ch. 23 - Prob. 6OQ Ch. 23 - Prob. 7OQ Ch. 23 - Prob. 8OQ Ch. 23 - A square, flat loop of wire is pulled at constant...Ch. 23 - The bar in Figure OQ23.10 moves on rails to the...Ch. 23 - Prob. 11OQ Ch. 23 - Prob. 12OQ Ch. 23 - A bar magnet is held in a vertical orientation...Ch. 23 - Prob. 14OQ Ch. 23 - Two coils are placed near each other as shown in...Ch. 23 - A circuit consists of a conducting movable bar and...Ch. 23 - Prob. 17OQ Ch. 23 - Prob. 1CQ Ch. 23 - Prob. 2CQ Ch. 23 - Prob. 3CQ Ch. 23 - Prob. 4CQ Ch. 23 - Prob. 5CQ Ch. 23 - Prob. 6CQ Ch. 23 - Prob. 7CQ Ch. 23 - Prob. 8CQ Ch. 23 - Prob. 9CQ Ch. 23 - Prob. 10CQ Ch. 23 - Prob. 11CQ Ch. 23 - Prob. 12CQ Ch. 23 - Prob. 13CQ Ch. 23 - Prob. 14CQ Ch. 23 - Prob. 15CQ Ch. 23 - Prob. 16CQ Ch. 23 - Prob. 1P Ch. 23 - An instrument based on induced emf has been used...Ch. 23 - A flat loop of wire consisting of a single turn of...Ch. 23 - Prob. 4P Ch. 23 - Prob. 5P Ch. 23 - Prob. 6P Ch. 23 - A loop of wire in the shape of a rectangle of...Ch. 23 - When a wire carries an AC current with a known...Ch. 23 - Prob. 9P Ch. 23 - Prob. 10P Ch. 23 - Prob. 11P Ch. 23 - A piece of insulated wire is shaped into a figure...Ch. 23 - A coil of 15 turns and radius 10.0 cm surrounds a...Ch. 23 - Prob. 14P Ch. 23 - Figure P23.15 shows a top view of a bar that can...Ch. 23 - Prob. 16P Ch. 23 - Prob. 17P Ch. 23 - A metal rod of mass m slides without friction...Ch. 23 - Review. After removing one string while...Ch. 23 - Prob. 20P Ch. 23 - The homopolar generator, also called the Faraday...Ch. 23 - Prob. 22P Ch. 23 - A long solenoid, with its axis along the x axis,...Ch. 23 - Prob. 24P Ch. 23 - Prob. 25P Ch. 23 - Prob. 26P Ch. 23 - A coil of area 0.100 m2 is rotating at 60.0 rev/s...Ch. 23 - A magnetic field directed into the page changes...Ch. 23 - Within the green dashed circle shown in Figure...Ch. 23 - Prob. 30P Ch. 23 - Prob. 31P Ch. 23 - Prob. 32P Ch. 23 - Prob. 33P Ch. 23 - Prob. 34P Ch. 23 - Prob. 35P Ch. 23 - Prob. 36P Ch. 23 - Prob. 37P Ch. 23 - Prob. 38P Ch. 23 - Prob. 39P Ch. 23 - Prob. 40P Ch. 23 - Prob. 41P Ch. 23 - Prob. 42P Ch. 23 - Prob. 43P Ch. 23 - Prob. 44P Ch. 23 - Prob. 45P Ch. 23 - Prob. 46P Ch. 23 - Prob. 47P Ch. 23 - Prob. 48P Ch. 23 - Prob. 49P Ch. 23 - Prob. 50P Ch. 23 - Prob. 51P Ch. 23 - Prob. 52P Ch. 23 - Prob. 53P Ch. 23 - Prob. 54P Ch. 23 - Prob. 55P Ch. 23 - Prob. 56P Ch. 23 - Prob. 57P Ch. 23 - Figure P23.58 is a graph of the induced emf versus...Ch. 23 - Prob. 59P Ch. 23 - Prob. 60P Ch. 23 - The magnetic flux through a metal ring varies with...Ch. 23 - Prob. 62P Ch. 23 - Prob. 63P Ch. 23 - Prob. 64P Ch. 23 - Prob. 65P Ch. 23 - Prob. 66P Ch. 23 - Prob. 67P Ch. 23 - Prob. 68P Ch. 23 - Prob. 69P Ch. 23 - Prob. 70P Ch. 23 - Prob. 71P Ch. 23 - Prob. 72P Ch. 23 - Review. The use of superconductors has been...Ch. 23 - Prob. 74P Ch. 23 - Prob. 75P

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