Two coils X and Y are placed in a circuit such that when the current changes by 2 A in coil X. The magnetic flux changes by 0.4 Wb in Y. The value of
Two coils X and Y are placed in a circuit such that when the current changes by 2 A in coil X. The magnetic flux changes by 0.4 Wb in Y. The value of mutual inductance of the coils is
A. 0.2 H
B. 5 H
C. 0.8 H
D. 4 H
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Correct Answer - A
We have, `M=(Deltaphi_(2))/(Deltai_(1))`
`M=(0.4)/(2)`
`therefore` Mutual inductance, `M=0.2H`
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