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Question Bank [ 2022 ] — Physics STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 SciencePhysicsQuestion Bank [ 2022 ]1 Mark
MCQ
In the expression e = –dΦ/dt, the -ve sign signifies ______ 
  • A
    The induced emf is produced only when magnetic flux decreases
  • ✓
    The induced emf opposes the change in the magnetic flux
  • C
    The induced emf is opposite to the direction of the flux.
  • D
    The induced emf is independent of change in magnetic flux.
✓

Answer

Correct option: B.
The induced emf opposes the change in the magnetic flux
In the expression e = –dΦ/dt, the -ve sign signifies the induced emf opposes the change in the magnetic flux.

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