MCQ
Current in the circuit is wattless, if.
- AInductance in the circuit is zero
- ✓Resistance in the circuit is zero
- CCurrent is alternating
- DResistance and inductance both are zero
✓
Answer
Correct option: B.
Resistance in the circuit is zero
Current in the circuit is wattless,
Because power $=i^2 R$, if $R=0$, then $P=0$.
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