Answer / yogesh raste

Power factor is an cosine of angle between voltage and
current.

Answer / mani777

pf is cosine (cos theeta) between voltage and current
pf= real power or reactive power/apperent power

pf=kva/v*i

Answer / dhivyabharathi

It is the ratio of resistance to impedance.cos@=R/z.

Answer / ravindra

pf tells that how much amount of power delivered by the
source from their total power. in ac ckts it is Cos(q)=p/vi,
ac ckts have v and i both sinosoidal fuction so it comp up
cos q but in electronic ckts cos q never used . so pf=
delevered power/total power , formula used for electronic ckts

Answer / deepu

power factor is define by an angle by which we mesure active power from apprant power

Answer / muthukumar

the cosine of the phaseangle between voltage and current

Answer / isk

it is the ratio of real(active) power delivered to the apparent power

Answer / irshan memon

It is the measure of how effectively we can consume the electrical energy that totally depends upon the cosine of the angle b/w the voltage and current and this angle become greater than 90 or less than 90 degree depending upon the load that is capacitive load (>90 degree)or the inductive load
(<90 degree)

Answer / sajjad

Electric element have angle between phase voltage and phase
current,power factor is cosine of that angle.

why are use corona ring in high tension line switchgear?

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who iz power minister ?? :P

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