Alternating Current

JEE Main level, single correct, medium

102 of 190

Question 102 of 190

If wattless current flows in the ACAC circuit, then the circuit is :

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Answer: (B) Purely Inductive circuit

The current in an AC circuit containing only either a capacitor or an inductor is said to be wattless as the average power is zero. As wattless current has phase difference of ϕ=90∘\phi =90^{\circ} with voltage, therefore power factor cos⁡ϕ\cos \phi will be zero.

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