Question

Which of the following converts electrical to mechanical energy ?
A. Motor
B. Battery
C. Generator
D. Switch

Answer 1

Hint: The conversion of the electrical energy to mechanical energy means that we need to supply the electrical energy and the system gives us the mechanical energy. For example, the grinding machine we use gives us mechanical power by grinding the product and we need to supply the energy for it to do it and we need to identify the component present in these devices.

Step by step solution:
The device which converts the electrical energy into mechanical energy is called the motor
We supply the electrical energy to the motor and the motor uses the electrical energy and converts it into mechanical energy using the Faraday law.

If the device gives us the electrical energy when we supply the mechanical energy then we call it as a generator as it generates the electrical energy using the mechanical energy.
The generator also works on Faraday's law.

The battery is the device that provides us Electrical energy using the chemical energy stored in it. The chemical energy converts into electrical energy when the circuit is completely connecting to the battery terminals.

And the switch is a device that permits the conduction of the electric current using different methods or techniques.

As we already discussed many of the appliances in our house are of such type and we can call them motors as each appliance has motors inside them which always use electrical energy supplied and convert it into mechanical energy.
From the above discussion, we can conclude that the device which converts the electrical energy into mechanical energy is called the motor.

Note:
The motor is a device that can be used to convert electrical energy into mechanical energy but we should also know that motor can be used as a generator in some cases. If we provide the mechanical energy at the rotor side we get the electrical energy at the electrical input side. So in some cases, the motor is equivalent to the generator and the difference lies only in the side which we are giving the input to.