what is meant by power factor ?

Answer Posted / saravanan.n

the power factor of acircuit may be defined as:

(1)the ratio resistance and impedance = r/z

(2)the ratio = watts/voltampers=trepower/apparent
power=V x I x cosQ /V X I

(3)the cosine of the angle of lead or lag current from the
applied voltage

Is This Answer Correct ?    6 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how to wiring it with contactor and timer together

1328


salam&hi, i need to know about how can i calculate an enough current for the new building before i submit it to the suppliers

1584


what is the difference between 2 way and 4 pole selector switch???

1841


how we calculate the withstansing current capacity of wires&cables?

1467


I FINISHED MY B.TECH IN EEE . I AM IN NEED OF A GOOD TRAINING INSTITUTE TO DO COURSES .. CAN ANYONE SUGGEST GOOD CENTRES IN TAMILNADU ,BANGALORE ,OTHER AREAS???????

1412






Why does the adjacent zone of protection overlap?

670


How equivalent impedance is calculated in thevenin theorem?

606


can you any one give exact mathematical relation between AC current and DC current?

1366


How can we measure the residual voltage in dc machines?

1196


what topics we have to concentrate for power grid et.written test.and tell what to read for english synonyms and antonyms.

1467


Dear all, i completed M.E(Power Electronics & Drives) 2011 passed out having 78% so i need job in core side but i don't know how can i receive the calls from electrical companies and i uploaded my CV in naukri, times jobs etc.. In that iam not recieved any mails from good companies so give me best procedure plzzzzzzzzzzzzzzzzzzzzzzzz..... Thanks, K.Linga Reddy Email-id:-lingareddykmthm@gmail.com Ph no:-08015402078

1380


What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?

1078


i m electrical diploma holder i want to do plc $ Scada some body tell me which insitute is best for me near chandigarh

2632


what is distribution board?

1834


What should be the length of transmission line so that we can see/obtain the full sine wave of voltage??

1386