Question

What happens when a huge current flows through any object? Which type of material must be used for the lightning rod? [3 MARKS]

Answer 1

Each point: 1.5 Mark

1. When there is a huge current, the electrons collide with atoms and other electrons on the way, and there will be an enormous amount of heat generated due to these collisions.
2. A lightning rod is used to conduct huge electrical currents when lightning occurs. Thus, only conductors can allow easy flow of charge to the ground surface without causing any heat damage, which is the main requirement of the lightning rod.