Physics
Grade-10
Easy
Question
The device which converts electrical energy into mechanical energy is called a/an _____.
- Electric motor
- Electric generator
- Transformer
- Inverter
Hint:
Think about appliances where electrical energy is converted to mechanical energy and what is common in all
The correct answer is: Electric motor
The most common device for changing electrical energy into mechanical energy is the motor. Most motors use electromagnets to cause mechanical rotation, which can do work.
In electricity generation, a generator is a device that converts motive power (mechanical energy) into electric power
A transformer is a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage.
Inverters are also called AC Drives, or VFD (variable frequency drive). They are electronic devices that can turn DC (Direct Current) to AC (Alternating Current).
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