why Copper loss is represented as I square R ?
Answers were Sorted based on User's Feedback
Answer / anshul pal
Because these are the losses which occur in lines and cause real power loss, hence these loss can not occur in negative term. As current varies sinusoidally, the square of current will remain positive, therefore accounts to i square r loss.
Is This Answer Correct ? | 8 Yes | 0 No |
Answer / md tarekul alam
Pls dear sir, answer me in this question.
Is This Answer Correct ? | 6 Yes | 3 No |
Pd across a resistor id I(amp) x R (ohm) volts ,power is V X
I = I^2 R watt
Is This Answer Correct ? | 1 Yes | 0 No |
Read above as ' Pd V across a resistor= I(amp) x R (ohm)
volt.Power = V x I = I^2 R watt' ( As pd is measured across
the resistor ,the pf is unity)
Is This Answer Correct ? | 0 Yes | 0 No |
how to identify vector group of three phase transformer by voltage method?
which type of motor is suitable for water suction pump ?
Difference between rating factor of cable and derating factor of cable?
hii.i am a B.TECH(EEE) graduate.i want 2 know wat type of qusns r asked in sbi clerk interview 2 candidates like me??kindly post answers ASAP..
An 11kv system consisting of an underground cable to a sub station about 300 meters away was shut down for about 10 hrs. On energising, it tripped off on earth fault about 10---20 mins later 6 times but since than it is not tripping.its already 3 weeks now. The SPAJ was found to be fine. what could be the cause.No test had been done to determine the cause of the trippings till now because of demand.
How to calculate flow of water delivered by pump when pressure & size of pipe line is given
why ground clearance of EHV line is more than HV line??
Can we install and run MCCB suitable for 440v 3Phase 4wire system, on a 220V 3Phase 4Wire System.
1.Why we use choke?If we use for high starting voltage then different type choke gives different voltage. Is it correct?
what is the difference between neutral and earth
What is the principal of motor?
In electrostatic precipitator why positive terminal of tranformer rectifier unit is grounded?