
10 Network Analysis and Synthesis
1.6.2 Inductors—Self-Inductance
and Mutual Inductance
When there is sudden growth (sudden increase) or decay (sud-
den decrease) in current flowing through a coil, a changing
flux will be produced. According to Faraday’s law, an EMF
is induced in a coil due to changing current flowing through
it. The amount of induced EMF in the coil depends upon the
self-inductance of the coil. The EMF will also be induced
in another neighbouring coil due to the changing current in
the coil which causes mutual inductance between the coils.
Figure 1.15 shows that EMF (e) is induced in a coil when a
changing magnetic flux, which ...