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The instantaneous values of emf and the...

The instantaneous values of emf and the current in a series ac circuit are -
E = Eo Sin `omega` t and l = lo sin `(omega t + pi //3)` respectively, then it is

A

Necessarily a RL circuit

B

Necessarily a RC circuit

C

Necessarily a LCR circuit

D

Can be RC or LCR circuit

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