Question

The mutual inductance (M) of the two coils is 1.5 H. The self inductances of the coils are 5 H and 4 H. Calculate the coefficient of coupling between the coils.

Answer 1

Given: L₁ = 5 H

L₂ = 4 H

M = 1.5 

To find: K = ?

Formula: `K = M/(sqrt(L_1 L_2))`

= `1.5/(sqrt(5 xx 4))`

= 0.3354 

= 33.54 %