how to calculate singlephase motor efficiency?
On monitor it is written that current rating is 2.2 Amps. Is it a monitor current drawing capacity or CPU & monitor. If it is only monitor rating, what will be the rating of only CPU and what will be the power consumption rating of PC, Monitor & Scanner? In net, I learnt that computer consumes only 200-300W while running. With the current rating of 2.2 Amps, how it could be 200-300Watts. Please explain?
out of all machines which have highest efficiency and why?
what is the principle of operation of tungstun bulb ??
how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.
What is the difference between earthed & unearthed system?
why we use low kv lightining arrester in line for example 9 kv using in 11kv
What is the need of generator relay panel
Why transformer making noise during the operation?
How to differentiate 220 Kv & 132 Kv line transmission tower if there are no specifications given on towers?
What is the difference between Neutral and Eatrh?
what is stay bow?
Mention the disadvantages of low power factor? How can it be improved?