PH-1599
Electromagnetic induction
Physics · Secondary 4 · Medium · Electromagnetic induction
A coil is rotated faster in a magnetic field to generate electricity. How does this affect the e.m.f. induced in the coil?
- The induced e.m.f. increases because the magnetic field lines are cut more quickly.
- The induced e.m.f. decreases because the coil has less time in the field.
- The induced e.m.f. stays the same because speed does not matter.
- The induced e.m.f. becomes zero because the motion is too fast.
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