SSC JE Electrical Engineering 2013 Paper

Question : 104 of 200

Marks: +1, -0

The mutual inductance between two coils having self inductances 3 henry and 12 henry and coupling coefficient 0.85 is

Solution:

K=M/√{L_1L_2}

M=K√{L_1L_2}

=0.85√{3×12}=5.1H

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