how we can calculate power factor without knowing current in
230v 100w load ?

Answer Posted / amarnath

PF= 0.8 Default

Use the Formula P=V*I*Cos PI
P= Power= 100W
V= Voltage= 230V
I=?
Cos PI= 0.8

Is This Answer Correct ?    1 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Alternator rotor earth fault relay circuit

1670


Define settling time.

818


Purpose of providing neutral isolation panel for parallel operation of diesel generator

1304


How to select the cable and voltage drop in circuit?

1276


what is under coal gassification?

1724






What is the minimum IR value of HT/ LT cable? Pls post separetely!!!!!

2051


if the load is 80 amp for main fuse and 100 amp for breaker so how can we calculate the cable size (cooper ) .

1765


What are the difference between CT/PT operated Meter and RRAMR Meter for HT/LT application?

2130


hi friends ,iam working as genset AVR service engineer in electrical field from past 2 yrs throughout india . i plan to shift in some other job without travelling in same field because i con't travel,i dont know what i do for that so please guide me what job is suited for me,how i can serch the job please anybody helpme iam totally confused

1650


It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.

3190


i want to know d working mechanism of tafe tractors next i like to know d engine type of apache bighs can anyone help me

1889


Please tell me the earthing procedures adopted for the STAR-STAR 3 Phase transformer in india and give a better sugession for earthing

1608


How much no load current of synchronous motor

1693


Between educational qualification and practical work experience, give us a brief explanation on your practical experience in your past Endeavour that you performed well to the satisfaction of your past or present employer?

1894


How can I calculate ISF of current transformer?

3185