Physics for Scientists and Engineers
Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 28, Problem 60P

(a)

To determine

The current at t=0.5ms

(b)

To determine

The current at t=10ms .

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A circular loop of wire (radius =2.0cm , resistance =7.8 ohms  ) is placed in a uniform magnetic field that makes an angle of  30 degrees with the plane of the loop. The magnitude of the field changes with time according to B = 70sin(30t)mT , where t  is measured in seconds. Determine the magnitude of the current induced in the loop at t = pi/30 s .
A coil consists of 25 loops of wire and has a diameter of 10 cm. Its resistance is 0.1Ω. At t=0 it lies perpendicular to a 0.5 T magnetic field (that is to say, the normal to the plane of the coil is parallel to the field direction) and the coil begins to rotate at 30 rad/s. Find the emf of induced in the coil and the current that flows as a function of time.
The magnetic field between the poles of the electromagnet is uniform at any time, but its magnitude is increasing at therate of 0.020 T/s. The area of the conducting loop in the field is 120 cm 2 and the total circuit resistance is 5.0Ω. Findthe induced emf and the induced current in the circuit.

Chapter 28 Solutions

Physics for Scientists and Engineers

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What is Electromagnetic Induction? | Faraday's Laws and Lenz Law | iKen | iKen Edu | iKen App; Author: Iken Edu;https://www.youtube.com/watch?v=3HyORmBip-w;License: Standard YouTube License, CC-BY