Question

Current in the circuit is wattless, if

• A. Inductance in the circuit is zero
• B. Resistance in the circuit is zero
• C. Current is alternating
• D. Resistance and inductance both are zero

Answer 1

Answer: (B)

Resistance in the circuit is zero

Answer 2

Because power $= i ^ { 2 } R$ if R = 0, then P = 0.