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

What is nichols chart?

780


why using transformer and thyristor switch in 3 phase apfc panel

2392


plz send me HPCL apptitude paper.. maulik_elect@yahoo.co.in

1662


How to do maintenance of transformer feeder.

1361


What is the name of transformers oil filteration equipment?

1600






What is the difference between isolators and electrical circuit breakers? What is bus-bar?

689


WHAT IS DIFFERENCE BETWEEN MANUAL CONTROL AND MAGNETIC CONTROL AND STATE ITS ADVANTAGE /DISADVANTAGE

1589


explain with diagram how to protect transformers and substations from over current with help of CT's?

1510


What is the maximum breakdown voltage of 11KVA and 66 KVA power line and how it is calculated?

1829


i need previous entrence exam papers of nhpc.

2373


WHAT IS counter flux IN CT?

1542


Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

1503


Dear sir, By which formula u can calculate for a particular kv line there is a range of mw.

1712


What is lc oscillator?

731


Draw a 230kv two-bus bar system showing the following. 1.Two generators (150MW) each connected through one 15.75/230KV transformers 2. 1 outgoing lines 3. Two 230/130 KV transformers 4. BUS PT's 5. CT

2137