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This question belongs to Electronics And Communications Engineering Electromagnetic Induction

Electromagnetic Induction

?

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 & Solution

Correct Answer: Option C

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Question posted by Examveda

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Dipali Badgire 6 years ago

K=M/√L1L2
M=K×√L1L2
M=0.5×√8×18
M=6

Harry Maurya 7 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 7 years ago

M = k * sqrt( L1 * L2),

Rohit Kumar 7 years ago

How to solve it

Bhadresh Prajapati 7 years ago

How to solve it

TR Sharma 8 years ago

Solved it

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