Answer / swati

Transformer is a static device which transfer the electrical energy(power)from one circuit to another without change in frequency.It has 2 windings which has magnetically coupled but electrically isolated.

Answer / venkat.v

Transformer is static device which converts voltage levels
(step up/ step down) without change in freqency. Its works
on farady laws of electro magntic princple

what happen if we give 220 volts dc supply to d bulb r tube light?

4 Answers   Genus, RMSI,

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Why field rheostat is kept in minimum position while armature rheostat at maximum position?

0 Answers  

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why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

0 Answers  

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megger how much voltage will produce ?

4 Answers  

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Dear all,recently in our plant we installed a conveyor for this the motor ratings are 5 hp and Amps 7.39.Due to on urgent starting of conveyor we fix the DOL starter with range of 9-15 amps.give me suggestion regarding on this issue

1 Answers  

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why we are using the ac supply in domestic purpose, why don't use dc supply.

5 Answers  

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At what factor resistance r of a conductor depends?

0 Answers  

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what is the purpose of NGR?

25 Answers   Assam Electricals,

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How many double suspension hardware fittings are required on a double circuit transmission tower?

0 Answers  

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technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"

0 Answers   Wipro,

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How can we calculate ac current from the given DC current when AC voltage is given?

0 Answers  

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what is the proximity & ferranti effects can you explain to me

1 Answers   APTransco,

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