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For an LCR circuit, the power transferre...

For an LCR circuit, the power transferred from the driving source to the driven oscillator is `P = I^(2) Z cos phi`.

A

Here, the power factor `cos phi ge 0, P ge 0`.

B

The driving force can give no energy to the oscillator `(P = 0)` in some cases.

C

The driving force cannot syphone out `(P gt 0)` the energy out of osillator.

D

The driving force take away energy out of the oscillator.

Text Solution

Verified by Experts

The correct Answer is:
1,2,3
Power is transferred from driving source to driven oscillator.
`:. P ge 0` and power factor `cos phi ge 0`.
`P = 0`, when `phi = (pi)/(2)` for `L` and `C` and `P lt 0` is not possible.
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