Question

State whether true or false:
A dynamo converts electrical energy into mechanical energy.
A. True
B. False

Answer 1

Hint: The device which converts electrical energy into mechanical energy is called the motor and we call the device which converts mechanical energy into the electrical energy as generator or dynamo. When we supply the mechanical energy we will get the electrical energy on the output terminals of the dynamo.

Complete answer:
We use dynamics in many places and the main work of the dynamos is to convert the mechanical energy into the electrical energy.
We can alternately call the dynamics as the generators as they generate the electrical energy using the mechanical energy. 
Hence  the correct option is false.

Additional information :
The device which converts the electrical energy into the mechanical energy is called as the motor.We supply the electrical energy to the motor and the motor us the electrical energy and converts it into the 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 generator as it generates the electrical energy using the mechanical energy
The generator also works on the faraday's law
The battery is the device which provides us
Electrical energy using the chemical energy stored in it. The chemical energy converts into the electrical energy when the circuit is complete connecting to the battery terminals.
And the switch is a device which permits the conduction of the electric current using different methods or techniques.
In our daily life there are many examples where we give the electrical energy to get the mechanical output from the device.
As we already discussed many of the appliances in our house are of such type and we can call them as  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 electrical energy into mechanical energy is called the motor.

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