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6. Electromagnetic induction — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics6. Electromagnetic induction1 Mark
MCQ
A metal sheet placed in magnetic field, which changes from zero to maximum. If figure  showns direction of eddy currents then direction of magnetic field is
  • A
    Perpendicular to the plane of the paper and inwards
  • ✓
    Perpendicular to the plane of the paper and outwards
  • C
    From West to East
  • D
    From North to South
✓

Answer

Correct option: B.
Perpendicular to the plane of the paper and outwards
b
Apply lenz law, eddy current opposes change in magnetic field

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