So here is the question: A 3.5 T magnetic field runs directly into the paper. A

Question

So here is the question:
A 3.5 T magnetic field runs directly into the paper. A loopwhich is currently square, having sides of 6.0 cm, is inside themagnetic field. The loop is stretched so that it becomes arectangle with side lengths of 2cm by 12cm in a time of only .03seconds.
What is the magnitude of the induced voltage?
A 3.5 T magnetic field runs directly into the paper. A loopwhich is currently square, having sides of 6.0 cm, is inside themagnetic field. The loop is stretched so that it becomes arectangle with side lengths of 2cm by 12cm in a time of only .03seconds.
What is the magnitude of the induced voltage?

Explanation / Answer

the induced voltage E= -(rate of change of flux) = - (B*change inarea/time) = -(3.5*12/.03)*10-4 = - 1.4 V

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