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.

What will happen if i connect the delta winding motor to star input.

1 Answers  

why three phase capacitor takes unbalanced current in capacitor bank?

0 Answers   Aggreko,

If genrator not build up voltage , How u can Manually Excite ?

2 Answers  

In ac circuit R,L,C are connected in series what is the output the circuit? explain

4 Answers  

why ferranti efect occurs on no load only?

3 Answers  

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0 Answers  

what is the cable size we can use for 11kv and 33kv ?

3 Answers  

Why we connect the capacitor in Delta?if we conect in Star what will happen?

9 Answers  

Explain UPS

1 Answers   Powerica,

How can we calculate ac current from the given DC current when AC voltage is given?

0 Answers  

why fractional pitch winding generally used in alternators?

0 Answers   TATA,

A 1F capacitor is charged to 100V initially. A 1H inductor is connected accros the capacitor througha a switch. The current in the circiut when the switch is closed is____

0 Answers   Ecil, L&T,