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

wat is meant by PX class in ct?

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What is the exact load current needed for a place which has 100nos of bulb of each 100w?

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i have a roll dia aprox.43 inches and gear box ratio is 14.3.so my question is how was decide the kw rating of motor.

1 Answers  

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What is a parabolic signal?

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i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com

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Which type of questions well asked. ?

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with help of neat sketch explain principle of TIG welding process

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how circuit breaker work.. what is the operations taking place inside a circuit breaker when an overcurrent occurs... is it similar to fuse?

0 Answers   LTT,

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Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?

0 Answers   Madina Group,

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Your B.tech marks is being given in CGPA grade. How is it calculated?

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I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?

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what is the difference between 4pole & 6pole DC Motors & give advantage ?

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