Answer / sandeep m. parmar

When circuit is capacitive, the current waveform is ahead
of voltage waveform by an angle. The cosine of this angle
is called leading power factor.

and when ciruit is inductive the , current waveform is
behind of voltage waveform by an angle.The cosine of this
angle is called lagging power factor.

Answer / sandeep m. parmar

The product of Magnitude of current, voltage and power
factor as mentioned above is called 1-ph power. and if
root of three is multiplied with the above then 3 ph power.
if power factor leading then leading power and if pf
lagging then lagging power. please combine this answer with
the above.

Answer / govind

when reactive power is positive then its called as leading power otherwise lagging for -ve.......

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