Answer Posted / n panja
Reactive power is the part of total electric power supplied
by the sources (alternating) which travels in the circuit
back and forth without doing any useful work. This power can
not be extracted or converted into other form of energy.
That is why it is also called wattless power. The average
value of reactive power over a full cycle for a sinusoidal
source is zero. Unit of reactive power is VAr.
| Is This Answer Correct ? | 18 Yes | 2 No |
Post New Answer View All Answers
help me with the question that might be ask on the interview for technical position
Differentiate between real and apparent power?
If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.
In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?
What is meant by control system?
mention hazard experienced during installation
what is gas turbine intercooling ?
how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?
How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???
what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights
What is resistance of 50meters, 16sq.mm, single core copper cable?
if grounding is notdone at regular intervals for long distance transmission, will the load connected at distribution end receive voltage during negativehalf cycle of the sine wave?
Best way to measure the Soil resistance of rocky soil, three probe method and four probe method
what is circuit breaker in transfomer and where it used
at what base you will tell the direction of rotation of dc motors and generators?