Answer / teja

Direct current (DC) is the unidirectional flow of electric charge. Direct current is produced by such sources as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type. Direct current may flow in a conductor such as a wire, but can also be through semiconductors, insulators, or even through a vacuum as in electron or ion beams. The electric charge flows in a constant direction, distinguishing it from alternating current (AC).

In alternating current (AC) the movement of electric charge periodically reverses direction. In direct current (DC), the flow of electric charge is only in one direction.

how many transformer

8 Answers   Dalmia Group, TATA,

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1 Answers   Hexaware,

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Why is better to have a minimum ceiling voltage of 250% than 160%?

0 Answers  

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0 Answers   GATE,

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2 Answers  

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1 Answers  

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4 Answers   Siemens,

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7 Answers   Jindal,

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0 Answers  

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4 Answers   TCS,

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