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Electromagnetic Induction — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectromagnetic Induction1 Mark
MCQ
Complete the following statement. For electromagnetic induction to occur:
  • ✓
    a magnet must be at rest within a coil of wire
  • B
    a coil of wire must be at rest relative to the magnet.
  • C
    a magnet must move through a coil of wire.
  • D
    a magnet and a coil must have the same velocity.
✓

Answer

Correct option: A.
a magnet must be at rest within a coil of wire

Current is induced in a coil when flux through the coil changes. The flux through the coil changes when a magnet moves relative to the coil and coil is at rest relative to the magnet.

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