Question:

1 henry =

Updated On: Jul 2, 2022
  • weber $\div$ ampere
  • weber $\div$ volt
  • weber ampere
  • weber volt
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The Correct Option is A

Solution and Explanation

$E = - L \frac{dI}{dt}$ . Therefore $[L] = [E \,dt/dI]$ = volt second/ampere = volt second/(coulomb/second) = volt second$^2$/coulomb = joule second$^2$ / coulomb$^2$
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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