For an LCR circuit, the power transferred from the driving source to the driven oscillator is 
.Than
A
The power factor 
.
. B
The driving force can given no energy to the oscillator 
in some cases
in some cases C
The driving force cannot siphon out 
the energy out of oscillator.
the energy out of oscillator. D
All of these
Text Solution
Verified by ExpertsThe correct answer is:
D
Here, 
If power factor 
.
For wattless component the driving force shall give no energy to the oscillator, so, at 
.
The driving force cannot syphon out the energy out of oscillator, i.e. 
cannot be negative.
Hence all options are correct.
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