Question

Choke coil is used to control(a) ac(b) dc(c) Both ac and dc(d) Neither ac nor dc

Answer 1

both AC and DC. the choke coil can control both AC and DC

Answer 2

Answer : option (a) AC

explanation : choke coil is an inductor which is used to block high frequency alternating current in an electrical circuit.

The choke is used only in alternating circuit. because for direct currents, The inductive reactance , $X_L=\omega L$ of the coil is zero. only the resistance of the coil remains effective which is too almost zero.

hence, Choke coil is used to control ac