plz.........
Asked by kirtichawla94 | 15th Jul, 2009, 06:42: PM
Expert Answer:
The current which changes its polarity after regular intervals of time is called alternating current (AC).
The current which does change its polarity with time and always remains constant with time is direct current (DC).
Answered by | 16th Jul, 2009, 06:48: PM
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