JEE Main 2022 · 25 Jun · Shift 1 · Physics Q41

PhysicsSingle correct+4 / -1Question 41 of 90

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

Purely Resistive circuit

Purely Inductive circuit

LCR series circuit

RC series circuit only

Answer and worked solution

Official answer: B

Wattless current means average power zero, $\cos\phi=0$ : the phase difference is 90°, as in a purely inductive (or capacitive) circuit.

(B)

Topics:Power in AC circuits

JEE Main 2022 · 25 Jun · Shift 1, Physics question 41