Question

Difference between inductance and mutual inductance

Answer 1

Inductance of an inductor ,L ∝ square of N  where N is the no of turns in the inductor.

Now if you decrease the no of turns inductance will decrease accordingly.

Impedance offered due to an inductor is X=2π*f*L. which will also decrease so the voltage drop across the inductor will be lesser in the circuit and voltage across the bulb will be high , as supply voltage is fixed.

Answer 2

Inductance is the property of induction.

It is of two type

Self inductance

$\underline \bold{Mutual\: inductance}$

The phenomena of inducing current emf in an inductor as a result of growth or decay of current in nearly inductor is called as mutual induction.

If two inductors are coupled inductively then the flux linked in an inductor depends directly on the instant current in the the inductor.

¢ is directly proportional to I

¢ = M I

where M is called coefficient of mutual inductance.

The value of mutual inductance depend on the linkage of flux which is depending on the separation orientation of the two inductors.

The coefficient of mutual induction is numerically equal to the flux linked in the inductor caused by the unit current flowing in the nearby inductor.