Inductor SOLVED

Good day Team, Question: A current of 4A flows in an inductor, and the energy stored by the inductor in joules is 12J, what will be the value of the inductor in henry?

by S.Tech
February 17, 2018

1 Answer

Answer by mrobbins

Energy stored in the magnetic field of an inductor is

$$E = \frac {1} {2} L I^2$$

So we can solve for $L$:

$$L = \frac {2 E} {I^2}$$

or with your numbers:

$$L = \frac {2 (12\ \text{J})} {(4\ \text{A})^2}= 1.5\ \text{H}$$

ACCEPTED +1 vote
by mrobbins
February 17, 2018

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