Class 10 Physics MCQs - Chapter 4
Electromagnetism Quiz Questions and Answers PDF - 15
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Electromagnetism Questions & Answers PDF Download: MCQ Quiz 15
MCQ 71: To increase or decrease AC voltages, we use
- fuse
- circuit breaker
- transformer
- generator
MCQ 72: The magnitude of induced e.m.f in a circuit depends on the
- speed of relative motion of coil
- speed of relative motion of magnet
- number of turns of the coil
- all of above
MCQ 73: The value of induced Electromotive force (EMF) is directly proportional to
- current through coil
- voltage applied
- no. of field lines
- resistivity
MCQ 74: When the surface is held parallel to the magnetic lines of force, the number of lines of force is
- negative
- zero
- maximum
- minimum
MCQ 75: The number of magnetic lines of force passing through any surface is called
- nature of magnetic field
- strength of magnetic field
- work of magnetic field
- weakness of magnetic field
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