Q.

Both the number of turn and core length of an inductive coil are doubled. Its self-inductance will be

  • AUnaffected
  • BDoubled
  • CHalved
  • DQuadrupled
Correct Answer : (B)

Doubled

Hints :

Both the number of turn and core length of an inductive coil are doubled. Its self-inductance will be Doubled.

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The property of coil by which a counter EMF is induced in it. when the current through the coil changes is known as

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As per faraday?s law of electromagnetic induction, an EMF is induced in a conductor whenever it

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