(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 20 turn wire that has a surface of 400cm^2 is rotating around an axe and is at a right angle to a uniform magnetic field of 0.3T. Find the average magnetic field induced if the speed of the rotation is 10 rotations/second.

2. Relevant equations

Faraday's Law

3. The attempt at a solution

A = 400cm^2 = 0.04m^2

N = 20

B = 0.3T

f = 10Hz

V =(Nxdelta phi)/delta t

B = phi/A

phi = BA = 0.3x0.04 = 0.012wb

V= (20x0.012)/0.1 = 2.4 Volts

Answer = 9.6 V

Can anyone point out where my error is? If there isnt any its possible the answer is wrong.

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# High School Electromagnetism

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