A coiled loop of wire is in the field region between the pole tips of an electromagnet.Which of the following things would NOT result in an induced EMF in the coil?
A) Rotation of the coil
B) Pulling the coil partly out of the field region
C) Increasing or decreasing the current in the electromagnet
D) Flexing the coil and changing its shape,keeping the perimeter the same
E) None of these choices will work.

Question

Quizplus · Accepted Answer

All the other options (A, B, C, D) would result in a change in magnetic flux through the coil, thus inducing an EMF according to Faraday's law of electromagnetic induction.

A Coiled Loop of Wire Is in the Field Region