CUET Preparation Today
Two coils of self inductance L1 and L2 are in parallels as shown in fig. If their Mutual inductance is M, then the effective inductance will be given by
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$\frac{L_1 L_2 }{L_1+L_2+2M}$ $\frac{L_1 L_2+M^2 }{L_1+L_2-2M}$ $\frac{L_1 L_2 - M^2 }{L_1+L_2-2M}$ $\frac{L_1 L_2 -M^2 }{L_1+L_2+2M}$ |
$\frac{L_1 L_2 -M^2 }{L_1+L_2+2M}$ |
When two inductances are in parallels then $L = \frac{L_1 L_2 -M^2 }{L_1+L_2+2M}$
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