Question

If coefficient of coupling between two coils is increased , mutual inductance between the coils

Answer 1

Answer:

If coefficient of coupling between two coils is increased , mutual inductance between the coils will also increase provided inductances remain constant

Explanation:

The amount of inductive coupling that exists between the two coils is expressed as a fractional number between 0 and 1 instead of a percentage (%) value, where 0 indicates zero or no inductive coupling, and 1 indicating maximum inductive coupling.

Its formula is ;

k = M/Squareroot(L1 and L2)

Here M is the Mutual inductance, L1 and L2 are coil inductances and k is the coefficient.

As M is directly proportional to k, so increasing k wil also increase M provided L1 and L2 remain constant

Answer 2

Answer:

The mutual inductance increases if the "coefficient of coupling increases".

Explanation:

The mutual inductance is directly proportional to a coefficient of coupling provided the inductance of coils remains constant. This is given by the formula, $k=\frac{m}{\sqrt{(l 1 * l 2)}}$

Here, k is coefficient of coupling,

L1 and L2 is the inductance of coil 1 and 2. M is a mutual inductance. Hence from the equation, if k increases value of m also increases.