Question

Prepare a PPT on Laser fireworks and light show. Explain how it is effective in reducing air pollution due to old conventional fireworks.

Answer 1

An A.C. generator works on the principle of ‘electromagnetic induction’.

Statement: Whenever a coil is rotated in a magnetic field, the magnetic flux linked with the coil changes, and therefore, an EMF is induced between the ends of the coil. Thus, a generator acts like a source of current if an external circuit containing load is connected between the ends of its coil.