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In an L-R-C circuit the current is given...

In an `L-R-C` circuit the current is given by `i = I cos omega t`. The voltage amplitudes for the resistor. Inductor and capacitor are `V_(R ), V_(L)` and `V_(C )` respectively.
(a) The instantaneous power into the resistor is `P_(R ) = V_(R ) I cos^(2) omega t`.
(b) The instantaneous into the inductor is `P_(L) = - V_(L) I sin omega t cos omega t`
(c ) The instantaneous power into the capacitor is `P_(c ) = V_(c ) I sin omega t cos omega t`.
(d) `p_(R ) + p_(L) + P_(c )` equals total power `p` supplied by the source at each instant of time.

A

(a),(c ),(d) are correct

B

(b),(c ) are correct

C

(a) is correct

D

(a),(b),(c ),(d) are correct

Text Solution

Verified by Experts

The correct Answer is:
D
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