If a current carrying coil is mounted on a metal frame, the back e.m.f. induced...
PHYSICS
JAMB 1991
If a current carrying coil is mounted on a metal frame, the back e.m.f. induced in the coil causes
- A. inductance
- B. eddy currents
- C. electro-magnetism
- D. dipole moment
Correct Answer: B. eddy currents
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