Answer / kmr227

The cosine of the angle between voltage and current in an a.c circuit is called as power factor(pf).

CosØ= R/Z
CosØ= Apparent Power / Active Power

Answer / abhishek

power factor tell us by which ratio the output wave of any load differs from the output wave of resistive load. 

Answer / ashok

1. The cosine angle between voltage and current in a AC circuit is called PF.
POWER FACTOR=P/VI
POWER FACTOR=KW/KVA
2. The ratio between resistance and impedance
POWER FACTOR=R/Z

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