Answer / k.prakashchandra

The potential coil has to build up back emf to counter the
applied voltage whrere current coil need not

why voltages are added when batteries are connected in series?

4 Answers  

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Operation carried out in thermal power stations?

0 Answers  

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what r the advantage of selecting micro controller type tripping of circuit breaker than relay type tripping?

5 Answers   BARC,

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WHY THE +VE POLARITY OF 48V DC POWER SUPPLY IS USUALLY GROUNDED?

1 Answers   Tulip,

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How we can calculate the consumption in kwh of motor on basis of kw @100% load, @50% load & @ no load.

0 Answers   Grasim,

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how the find ct mf and mf roll in metering

1 Answers  

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why do power factor in the three phase induction motor increases with the load ???.

3 Answers   Jindal,

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Types of test in Switchgears, MCC, NGR and DB's how it should be procced. Can anyone give me the details here or email me to pasuvaraj.k@gmail.com

0 Answers  

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we want low electricity at lower speed of fan.what we have to do?

5 Answers  

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what is the right cable size for 100 hp mpter.

3 Answers  

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We say that if voltage in a power system is increased,for a constant power the current will decrease (by P=VI). isn't this in disagreement with the ohms law(I propotional V;resistant const.).Since the resistance of transmission lines remains constant,shouldn't inc in voltage cause inc in current across the transmission line? I have read many articles across the net but still couldn't this figure this out. :( Guyz plz assist me with dis..:)..

4 Answers  

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why a diode bridge is provided in vcb control circuit ?

2 Answers  

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