JEE Main202225 Jun 2022Morning ShiftPhysicsAlternating CurrentActual
If wattless current flows in the AC circuit, then the circuit is :
Options
- APurely Resistive circuit
- BPurely Inductive circuit
- CLCR series circuit
- DRC series circuit only
Correct answer
B. Purely Inductive circuit
Step-by-step solution
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 ° with voltage, therefore power factor cos ϕ will be zero.