Mutual
Inductance
Mutual Inductance is
property of electric circuits in which an electromotive
force so called emf is induced by the process of
electromagnetic induction in one of the circuits by a
change of current in any one of them. Or defining it in
another way we can say mutual inductance of two nearby
circuits is defined as the ratio of the emf induced in one
circuit to the rate of change of current in the other
electronics circuit. The term inductance coil or inductor
is a device having the property of inductance. If we are
given coil, the ratio of the electromotive force of
induction to the rate of change of current in the coil is
called the self-inductance of the coil. In more simpler
terms Self-inductance is the number of flux linkages per
unit current. Flux linkage is the product of the flux and
the number of turns in the coil. Self-inductance does not
affect a circuit in which the current is unchanging type
but it is of great importance when there is a changing
current, because of an induced emf during the time of
change. The (SI) unit of mutual inductance is the Henry,
the same as the unit of self-inductance.
The fact that a change in the current of
one coil affects the current and voltage in the second
coil is quantified in the property called
mutual
inductance
The constant M, called the
mutual
inductance of the two circuits, is dependent on the
geometrical arrangement of both circuits
This effect is called
mutual
inductance: the induction of a voltage in one coil in
response to a change in current in the other coil |
