SSC JE Electrical Engineering 2012 Paper

Question : 194 of 200

Marks: +1, -0

Two inductors have self inductances of 9 mH and 25 mH. The mutual inductance between the two is 12 mH. The coefficient of inductive coupling between the two inductors is

18.75
0.25
0.8
1.25

Validate

Solution:

M=K√{L_1L_2}

K=M/√{L_1L_2}

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