Question

Question 2
In the circuit shown in the figure, when the circuit is completed, the hammer strikes the gong. Which of the following force is responsible for the movement of the hammer?


(a) gravitational force alone
(b) electrostatic force alone
(c) magnetic force alone
(d) frictional force alone

Answer 1

(c) magnetic force alone

Electromagnet is used in the bell. Hence, the magnetic force is responsible for the movement of the hammer.