Answer / prabhu

The speed of the dc series motor rises when the load of the motor decreases due to decrease in field current or armature current (field current = armature current in series motor). decrease in field current or armature current causes decrease in field flux so speed increases, because field current is iversely proportional to field flux.

how maney type tempereture measurement ?

0 Answers   TATA, Tata Motors,

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I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.

0 Answers   IOCL,

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what gas is present in incandescent and florescent bulbs

4 Answers  

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if only one generator is running in droop mode parrallel with grid and suddenly grid breaker off what will happen? It will trip o/u freq or stay as it is? (urgent)

10 Answers  

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2 Answers   Sun Pharma,

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how many hvdc lines in india???

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1 Answers  

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List the time domain specifications.

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How the electric train gets the supply of electricity? What is the return path of the current?

8 Answers   Siemens,

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why 3phase is 440v but where as we get phase voltage 220v,we have to get 220*3=660v.can u pleas give in detailed

3 Answers   Avantha Group,

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1. what is usage for power factor in industries?? 2.why we need to monitor power factor??

4 Answers   Havells,

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