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Fig. E.I show s magnet coil experiment o...

Fig. E.I show s magnet coil experiment of electromagnetic induction.
What happens when
a. i. The number of turns of the coil is inceased.
ii. The streangth of the magnet is increased.
iii. The speed of motion of the magnet is increased.
b. An induced e.m.f. has no direction of its own. Why?

Text Solution

Verified by Experts

a. i. Induced e.m.f increases
ii. Induced e.m.f increases
iii. Induced e.m.f increases
b. The direction of induced e.m.f or current is such as to oppose the cause produced it. In this experiment, if the direction of motion of magnet reverses, the e.m.f.s direction also reversed. Hence an induced e.m.f. has no direction of its own.
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