In the circuit shown in Fig.11.2, when the circuit is completed, the hammer strikes the gong. Which of the following force is responsible for the movement of hammer?
A. gravitational force alone
B. electrostatic force alone
C. magnetic force alone
D. frictional force alone
Answer:C
In the circuit shown in Fig.11.2, when the circuit is completed, the hammer strikes the gong. Which of the following force is responsible for the movement of hammer?
A. gravitational force alone B. electrostatic force alone C. magnetic force alone D. frictional force alone