Answer Posted / syed vikhar ahmad
as we know power factor is the cosine of the angle between
voltage and current and in dc there is 0 angle between
voltage and current so the power factor is always one thats
why we dont discuss power factor in dc.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what shall be no load voltage of 132/33 kV transformer ? is it 33 kv of 34.5 kV
what is the difference between ups & inverter
what is acceptance test in electrical engineering.
If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?
CPC cable .PVC \1C....I want to get sure that type is flexible indoor or to be install on trench. please advice .thanx :)
What is the effect of positive feedback on the stability of the systems?
Why have to use copper cable for local isolator to motor ?
can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?
What is the necessary condition for stability.
what is the safty of poly phase tranformer?
what is the current setting for different relay protection for transformer .
please explain to me how to calculate current,voltage,resistance with formula??
what is the use of vcb & isolator in substation?
Which thing is maximum in RLC circuit at resonance a)power consumption b)inductive current c)capacitive voltage
which protection function should measure RMS value of current&DFT value of current?