The correct answer is (d) motor.
A motor is a device that converts electrical energy into mechanical energy. It does this by using a magnetic field to create a force that turns a shaft. The shaft can then be used to power other devices, such as a fan, a pump, or a machine.
A dynamo is a device that converts mechanical energy into electrical energy. It does this by using a rotating coil of wire to generate an electric current. The current can then be used to power other devices, such as a light bulb or a motor.
An induction coil is a device that uses electromagnetic induction to generate an electric current. It does this by passing a current through a coil of wire, which creates a magnetic field. The magnetic field then induces a current in a nearby coil of wire.
A generator is a device that converts mechanical energy into electrical energy. It does this by using a rotating coil of wire to generate an electric current. The current can then be used to power other devices, such as a light bulb or a motor.
In conclusion, the correct answer is (d) motor. A motor is a device that converts electrical energy into mechanical energy. It does this by using a magnetic field to create a force that turns a shaft. The shaft can then be used to power other devices, such as a fan, a pump, or a machine.