Question:

The current of 2A passing through a coil of 100 turns gives rise to a magnetic flux of 5 x 10-5 Wb/turn, the magnetic energy associated with the coil is _________ J

Updated On: Apr 15, 2024
  • 5x10-4
  • 5x10-3
  • 5
  • 5x10-2
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The Correct Option is B

Solution and Explanation

The correct option is (B): 5x10-3
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Top Questions on Electromagnetic induction

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Concepts Used:

Electromagnetic Induction

Electromagnetic Induction is a current produced by the voltage production due to a changing magnetic field. This happens in one of the two conditions:-

  1. When we place the conductor in a changing magnetic field.
  2. When the conductor constantly moves in a stationary field.

Formula:

The electromagnetic induction is mathematically represented as:-

e=N × d∅.dt

Where

  • e = induced voltage
  • N = number of turns in the coil
  • Φ = Magnetic flux (This is the amount of magnetic field present on the surface)
  • t = time

Applications of Electromagnetic Induction

  1. Electromagnetic induction in AC generator
  2. Electrical Transformers
  3. Magnetic Flow Meter