Rotor resistance starter is used to obtain=
A increased starting torque B decrease
starting current
C decrease starting loss D increase efficiency
total numbers of earthing of a transformer
in an ac series circuit there are 30 bulbs are connected in a serial set.what will happen if one bulb is fused and we removed the bulb and reconnect with the remaining bulbs? (29 bulbs). will the brightness of other bulbs increase or not?
why we use delta connection in transformer
25 kva 3 phase dg how many current will take per phase , plssssssss reply me
how to determine kilowatts (real power) is used in energy meter? is it apparent power effect the disk rotation?
Why DC weldings sets preffered over AC considering human safety aspects ?
Is there a chance for a motor speed to become negative..?? What is the reason for such a phenomenon.? In that case does the motor works as a generator..???
what is the formula or method to calculate RESIDENTIAL,COMMERCIAL & INDUSTRIAL load power?????
What is the d/f b/w MCCB & MCB
Why are the cores of large transformers built up of circular transactions ?
which is the best, A/C DRIVES or D/C DRIVES for cranes,...... ...and why......?
what is the voltage equation of 240/12 v transformer??
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