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Questions  

Two inductance coils of inductances L1 and L2 are kept at sufficiently large distance apart. On connecting them in parallel their equivalent inductance will be :

a
L1+L2L1L2
b
L1L2L1+L2
c
L1+L2
d
L1L2

detailed solution

Correct option is B

For parallel connections of inductance without coupling1L=1L1+1L2⇒L=L1L2L1+L2

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