alleryAn electric motor is a device that converts:
AElectrical energy into mechanical energy
BMechanical energy into electrical energy
CElectrical energy into heat energy only
DChemical energy into electrical energy
Answer & Solution
Correct answer: A. Electrical energy into mechanical energy
1. A motor uses the force on a current-carrying coil in a magnetic field to make the coil rotate.
2. The chapter defines an electric motor as a device changing electrical energy into mechanical energy.
3. The option is the function of a generator, which is the reverse device, so it is wrong.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 4 "Effects of Electric Current", p.64_
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