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CBSE Class 12-science Answered

explain phasor diagram in LCR series circuit
Asked by tejvir | 24 Aug, 2012, 07:58: AM
answered-by-expert Expert Answer
In a LR or in a RC Circuit, the voltage is always perpendicular to the current as shown:
In a RC circuit:
and in a LR circuit:
the different is in LR circuit, the current is ahead of potential difference and in case of RC circuit, it lags behind the potential difference.
In a normal resistive circuit, it is in phase with the potential.
thus in a LCR circuit, the current will be perpendicular to the potntial across the inductor and the capacitor and the potential across the inductor will lag behind the current by pi/2 and in capacitor, the current will lag by pi/2 behind the potential.
thus the phase digram will look like:
Answered by | 29 Aug, 2012, 05:51: PM

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