Faraday's Law Video Lessons

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Problem: A single loop of wire with an area of 0.0840 m2 is in a uniform magnetic field that has an initial value of 3.80 T, is perpendicular to the plane of the loop and is decreasing at a constant rate of 0.140 T/s.Part A.What emf is induced in this loop?Express your answer using two significant figures.Part B.If the loop has a resistance of 0.800, find the current induced in the loop.Express your answer using two significant figures.

FREE Expert Solution

In this problem, we are dealing with induced emf in a loop.

Part A.

Induced emf:

ε=-NϕBt=-NBAcosθt

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Problem Details

A single loop of wire with an area of 0.0840 mis in a uniform magnetic field that has an initial value of 3.80 T, is perpendicular to the plane of the loop and is decreasing at a constant rate of 0.140 T/s.

Part A.
What emf is induced in this loop?
Express your answer using two significant figures.

Part B.
If the loop has a resistance of 0.800, find the current induced in the loop.
Express your answer using two significant figures.

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