differce between direct current or alternating current
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Direct current
it is called unidirectional current .
The current is not senisoidal in nature .
Less amount is produced and are generally used in small devices . it's devices are battery
it doesn't give RMS value .
Alternative current
it is multidirectional in nature .
show senisoidal property that is sine and cosine wave .
It give RMS value of current .
it is used in large amount .
Production of AC current in large number .
it is used in refrigerator ,Air- conditioners etc
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