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An E.M.F. can be induced by _________
  • a)
    Change in magnetic field
  • b)
    Change in the area of cross section
  • c)
    Change in angle between magnetic field and area
  • d)
    Change in magnetic field, area and angle
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
An E.M.F. can be induced by _________a)Change in magnetic fieldb)Chang...
The dot product of magnetic field vector and area vector.
emf=BAcos(theta), hence if either of the three, that is, magnetic field, area or angle changes, thee emf will change.
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An E.M.F. can be induced by _________a)Change in magnetic fieldb)Change in the area of cross sectionc)Change in angle between magnetic field and aread)Change in magnetic field, area and angleCorrect answer is option 'D'. Can you explain this answer?
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