NOTA-Energy store

1

An inductor is a coil that is
used specifically for its
property of self inductance.

2

INDUCTOR

FUNCTION

Symbol: Store energy
in the form
Control of magnetic
current.
field.

3

Back e.m.f produced in an
inductor is given by;

Power received by the
inductor at time t is:

4

5

The total energy U received by the
inductor when the current change
from 0 to I :

I

∫ dU = L∫ I dI
0

6

where
U : energy stored in an inductor
L : self inductance
I : electric current

7