Home PYQs UPPSC UPPSC MCQs Prelims 2016 (GS Paper I)

Question

'Dynamo' is a device, which converts:

  1. chemical energy into electrical energy
  2. electrical energy into mechanical energy
  3. mechanical energy into electrical energy
  4. electrical energy into chemical energy

Answer:

Option C: mechanical energy into electrical energy

Detailed Solution:

The correct answer is “mechanical energy into electrical energy”.

A Dynamo consists of a coil of wire placed within a magnetic field. When the coil is rotated, the magnetic field induces a current in the wire, resulting in the conversion of mechanical energy into electrical energy.