Question

the coefficient of self induction of two conductors coils are 20 Milli angry and 40 Milli Henry respectively if the coils are connected in series so as to support each other and the resultant inductance is 80 Milli Henry then the value of the mutual inductance between the coils will be​

Answer 1

Dear Student,

◆ Answer -

M = 10 mH

● Explaination -

# Given -

L1 = 20 mH

L2 = 40 mH

Le = 80 mH

# Solution -

Equivalent inductance of two coils (same direction) in series is -

Le = L1 + L2 + 2M

80 = 20 + 40 + 2M

2M = 80 - 60

M = 20 / 2

M = 10 mH

Hence, value of the mutual inductance between the coils will be 10 mH.

Thanks dear...

Answer 2

Answer:

Explanation:

20 root2