What is power factor?

Answer Posted / harish chandra

ratio of resistance to impedance in a circuit is called power factor.

Is This Answer Correct ?    0 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

why capacitive load is not used in routine life????any reason is there ??????

1144


how can we calculate the ratio of caustic soda and water in lrs.

5182


Why 30kw 40 hp 4 pole 3ph induction motor over heated?any steps on reduction in heat?

1255


What is a slack bus?

646


1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.

2780






how solar power plant energy meter multiplication factor

1596


dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish

1904


what is the carona effects meaning in HT line transmmission system

1529


WHAT IS THE TOTAL POWER GENERATION IN CHHATTISGARH?

1480


IN SINGLE PH TRANSFORMER IF LEKAGE IMPEDANCE DROP IS NEGLECTED ,THE FLUX IN THE MAGNETIC CORE and the lekage flux linking a winding are a)proportional to the applied v to the winding i respectively.

1634


PLEASE ANYBODY HAVE ELECTRICAL CIRCUIT DIAGRAM FOR CHMER PULSE CD 60M SPARKING MACHINE.PLEASE MAIL ME SUPRIYAAYYAPPAN@YAHOO.CO.IN.

2347


What is the function of electron gun assembly used in crt?

653


What is the effect of positive feedback on the stability of the systems?

642


If i have two 3000 kW motors and the whole facility requires a 10 MVA transformer. What would be better installing two 5 MVA transformers(one for 1 motor ) or just a single 10 MVA transformer for both of them. Give reasons for your answer.

4652


How shall i select the value of capacitor or inductor in a system?

1450