how the rotating magnetic fieldis produced in induction machines??? give the correct explanation.is there any mathematical expression for the same?

1 Answers  

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what s a servo motor? how to control the servo motor? and its application, purpose of using?

2 Answers   Arabian Pipes,

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if 6 earth pit value is 1.5 ohm then what should be the number of earth pit to make the value .8 ohm

0 Answers  

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If the Supply voltage is increased by n times, the cross section of conducter will [increase/decrease] by ________ times ?

4 Answers  

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374kvar capacitor bank connected across 600kw,6.6kv motor.what will happen if motor run at 50% , whether full kvar applied or half?

1 Answers   NTPC,

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what is ballast

1 Answers  

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What is the effect of leading power factor for power transformer & D.G?

7 Answers   Exide,

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why induction motor takes high current?

1 Answers   Emerson,

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What is meant by Load Encroachment in OHL Feeder Protection?

0 Answers  

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Distribution Transformer are connected in configuration? a. Star/delta b. delta/star c. star/star d. delta/delta

7 Answers   IPR, Maruti Suzuki,

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If the positive terminal of batteries in 125 v dc system is connected to earth what will happen ?

4 Answers  

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What is the size of electrical cable to be used for a space heater single phase 240V ?

3 Answers  

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