COLLEGE PHYSICS LL W/ 6 MONTH ACCESS
2nd Edition
ISBN: 9781319414597
Author: Freedman
Publisher: MAC HIGHER
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Chapter 20, Problem 1QAP
To determine
If a current is suddenly set up in loop a, is there also a current in loop b, if yes, direction of the current and the direction of the force that is exerted on loop b by loop a.
Expert Solution & Answer
Answer to Problem 1QAP
There will be current in loop b in clockwise direction
Force exerted by the loop a on loop b will be downward in direction
Explanation of Solution
Given info:
Current is suddenly set up in loop a
Concept Explanation:
When a current start to flow on loop a, changing magnetic field is created to upward direction. According to the Lenz law due to this changing magnetic field a current is induced in loop b. This current is induced in a way that resulting magnetic field due to this current opposes the magnetic field produced by loop a. Therefore, the current that flows on loop b will be the opposite direction to the current flows on loop a. Currents flows in opposite directions producing a magnetic force downwards.
Conclusion:
There will be current in loop b in clockwise direction
Force exerted by the loop a on loop b will be downward in direction
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Chapter 20 Solutions
COLLEGE PHYSICS LL W/ 6 MONTH ACCESS
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