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In an a.c. Circuit the voltage applied i...

In an a.c. Circuit the voltage applied is `E=E_(0) sin (omega)t`. The resulting current in the circuit is `I=I_(0)sin((omega)t-(pi/2))`. The power consumption in the circuit is given by

A

`E_(0) I_(0) // sqrt(2)`

B

`E_(0) I_(0) // 2`

C

`EI // sqrt(2)`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
`P = E_("rms") l_("rms") cos phi = (E_(0))/(sqrt(2)) xx (l_(0))/(sqrt(2)) "cos" (pi)/(2) = 0`
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