Saturday
April 18, 2015

Homework Help: Physics

Posted by Valerie on Sunday, April 7, 2013 at 8:40pm.

A magnetic field increases from 0 to 0.09 T in 3.0 s. How many turns of wire are needed in a circular coil 20 cm in diameter to produce an induced emf of 7.5 V? Please help soon.

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