A 8.8 cm diameter circular loop of wire is in a 1.04 T magnetic field. The loop is removed from the field in 0.30 s . Assume that the loop is perpendicular to the magnetic field. Part A What is the average induced emf?

0.021 V

Explanation:

The average induced emf (E) can be calculated usgin the Faraday's Law:

Where:

N = is the number of turns = 1  

ΔΦ = ΔB*A                                            

Δt = is the time = 0.3 s  

A = is the loop of wire area = πr² = πd²/4

ΔB: is the magnetic field = (0 - 1.04) T                    

Hence the average induced emf is:

Therefore, the average induced emf is 0.021 V.

I hope it helps you!