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Electromagnetic Induction — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectromagnetic Induction1 Mark
MCQ
The self induction takes place when magnetic flux through a coil:
  • A
    Remains steady
  • B
    Decreases
  • C
    Increases
  • ✓
    Either $(B)$ or $(C)$
✓

Answer

Correct option: D.
Either $(B)$ or $(C)$

As per Faradays law, $\text{EMF}$ is always directly proportional to the rate of change of magnetic flux. Therefore, electromagnetic induction takes place whenever the magnetic flux passing through the object changes.

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