why power factor occur only inductive load not in resistive ?

Answer Posted / sudhir s rao

ramya mam..
firstly i am sorry if i am wrong, i am a diploma (electrical and electronics) student, so i may be wrong!!

the meaning of current in phase with voltage is that :
in a "PURE RESISTIVE LOAD", the cosine angle between current and voltage is 0 (ZERO).
Hence the power factor is minimun is "PURE RESISTIVE LOADS"

Is This Answer Correct ?    7 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Differentiate between ideal and non ideal current sources?

665


I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)

1456


why the starting voltage drop in a cable needs to be limited?what is percentage of the voltage drop allowed during starting?

1369


Advantages of using generator circuit breaker (GCB) scheme in a power station ?

4749


WHAT KIND OF LIGHTENING PROTECTION SCHEMS CAN BE ADOPTED FOR THE FLAT ROOF OF BIG DIMENSION.

1640






What is effect of over voltage and under voltage on ACB

1404


Dry type transformers

1416


Dear all, I'm manikandan I have done by DIPLOMA EEE from 2011 , I have 5 years of experience from Power plant instrumentation field , which one field is give long life & which one field is best ,I confused a lot and also I'm studying AMIE, can I choose which department from Section B examination? pls tell me

1202


Factory acceptance test. FAT. For 132 kv transmisstion towers what is that meaning and what are the tests commonly companies perform now days.

1267


The gauge indicates the number of amps, but what about voltage? How voltage rating (for wire or fuse) determined?

1525


Why the earth to phase voltage is high 250 compare to other two phases

1064


what is a reactive power? what is the relation with power factor?

1645


what does mean of RCT and STR in diffrential CT?

3775


Sir, I m 3rd year student 4m DCE and want to do internship in siemens or l&t or any other mnc related to electrical engineering. please tell me the procedure 4 same and oblige me

1527


Convert a star connected network into a delta connected network.

659