Question

Which of the following statement(s) is/are correct with respect to the equipments used for the setup of a lightning conductor?

• A. The highest point of the conductor is made up of rubber.
• B. The highest point of the conductor is made up of copper.
• C. The wires for conduction of charges to the ground are generally made up of copper.
• D. A metal plate is required which is buried deep down under the ground.

Answer 1

Answer: (B), (C), (D)

The correct options are
B The highest point of the conductor is made up of copper.
C The wires for conduction of charges to the ground are generally made up of copper.
D A metal plate is required which is buried deep down under the ground.

During lightning discharge, lightning spark prefers to take the easiest path to the ground. The highest point of the lightning conductor is pointed and generally made up of copper. This makes the lightning to get attracted towards the pointed top of the lightning conductor.
When it falls on the lightning conductor, the large amount of charge are drained out along the conductor with conducting wires (generally copper).
These conducting wires are connected to a metal plate buried in the ground. So, the large amount of charge is then finally discharged to earth via the wires and metal plates.