The self inductances of two coils are 8 mH and 18...

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The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is

A. 4 mH

B. 5 mH

C. 6 mH

D. 12 mH

Answer: Option C

This Question Belongs to Electronics And Communications Engineering >> Electromagnetic Induction

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Comments ( 6 )

Dipali Badgire :

3 years ago

K=M/√L1L2
M=K×√L1L2
M=0.5×√8×18
M=6
Harry Maurya :

5 years ago

M=L× Sq.Root(M1xM2)
E.g. M=0.5 x Sq.root(8×18)
M=0.5 x 12 ==> 6
Aswin Pisharat :

5 years ago

M = k * sqrt( L1 * L2),
Rohit Kumar :

5 years ago

How to solve it
Bhadresh Prajapati :

5 years ago

How to solve it
TR Sharma :

6 years ago

Solved it

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