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Write some difference between ac and …

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Write some difference between ac and dc current

Posted by Anisha Bharti 5 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Gaurav Seth 5 years, 5 months ago

Direct Current:

1) It is derived from a cell or a battery and is uni-directional.

2) The positive and negative terminals are fixed.

3) The voltage v/s time graph is represented by a stariaght line parallel to time axis.

Thus the value of voltage or current remains constant with time

Alternating Current:

1) The current changes its direction after equal intervals of time.

2) It has no fixed terminals as the current reverses its direction after every half cycle.

3) The voltage Vs time graph is generally represented by a sinusoidal curve.

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