Question

Observe the figure and write the answers to the questions asked.

1. The construction shown in the figure is of which device?
2. Explain the principle on which this device works.
3. Write any three uses of this device.

Answer 1

1. The figure shows the construction of an electric generator.
2. Principle of electric generator: Electric generator works on the principle of electromagnetic induction. When the coil of the electric generator rotates in a magnetic field, the magnetic field induces a current in this coil. This induced current then flows into the circuit connected to the coil.
3. Uses of electric generator are-
   1. Providing backup energy for emergencies.
   2. Powering construction sites.
   3. Powering nuclear reactor plants.
   4. Providing backup for hospitals and other office buildings