Physics
Grade-10
Easy
Question
In an electric motor which force is used to rotate the coil?
- Electric force
- Gravitational force
- Magnetic force
- Nuclear force
Hint:
Magnetic force
The correct answer is: Magnetic force
Magnetism is the force that creates rotation for a motor to operate. The poles of a permanent magnet are connected by magnetic lines of force. The principle of magnetism states that unlike poles are attracted to one another while like poles repel. AC motors operate on this principle.
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