MCQ
In general in an alternating current circuit
- ✓The average value of current is zero
- BThe average value of square of the current is zero
- CAverage power dissipation is zero
- DThe phase difference between voltage and current is zero
✓
Answer
Correct option: A.
The average value of current is zero
a
(a) The average value of current can be zero because all positive and negative currents can cancel each other.
(a) The average value of current can be zero because all positive and negative currents can cancel each other.
The average value of square of the current cannot be zero because after squaring the currents all becomes positive and cannot cancel each other.
Average power dissipation and phase difference between voltage and current cannot be zero.
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