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An alternating emf is applied across a p...

An alternating emf is applied across a parallel combination of a resistance `R`, capacitance `C` and an inductance `L`. If `I_(R),I_(L),I_(C)` are the currents through `R,L` and `C` respectively. Then the diagram which correctly represents, the phase relationship among `I_(R),I_(L),I_(C)` and source emf `E` is given by

A

B

C

D

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The correct Answer is:
C

`I_(L)` lags behind `I_(R)` by a phase of `pi//2` while `I_(C)` leads by a phase of `pi//2`
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