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A circular loop in the plane of the paper lies in a 0.75-T magnetic field pointing into
Chapter 21, Problem 13P(choose chapter or problem)
Problem 13P
A circular loop in the plane of the paper lies in a 0.75-T magnetic field pointing into the paper. If the loop’s diameter changes from 20.0 cm to 6.0 cm in 0.50 s, (a) what is the direction of the induced current, (b) what is the magnitude of the average induced emf, and (c) if the coil resistance is 2.5 Ω, what is the average induced current?
Questions & Answers
QUESTION:
Problem 13P
A circular loop in the plane of the paper lies in a 0.75-T magnetic field pointing into the paper. If the loop’s diameter changes from 20.0 cm to 6.0 cm in 0.50 s, (a) what is the direction of the induced current, (b) what is the magnitude of the average induced emf, and (c) if the coil resistance is 2.5 Ω, what is the average induced current?
ANSWER:
Solution 13P
Step 1 of 4
(a) We are required to find the direction of the induced current.
(b) We are required to find the magnitude of the average induced emf.
(c) We are required to find the average induced current when the coil resistance is 2.5 Ω.