Question

Name a device which converts mechanical energy into electrical energy. Explain the underlying principle and working of this device with the help of a labelled diagram

Answer 1

a hydroelectric plant uses the mechanical energy of flowing water to generate electrical energy.

principle

Gravity causes water to fall through the penstock inside the dam. At the end of the penstock there is a turbine propeller, which is turned by the moving water. The shaft from the turbine goes up into the generator, which produces the power.

Answer 2

electric generator is the device which convert mechanical energy into electric energy
principle - It obpretes on the principle of electro magnetic induction