What is lightning conductor ? How does it save high-rise buildings from lightning damage ?

How does a lightning conductor protect buildings from lightning?

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What are semi-conductors ? How are they formed ?

A conductor which helps protect the building from the harmful effects of lightning

Lightning strikes only on high - rise buildings

The lower end of the lightning conductor is connected to a metal plate, which is buried deep inside the Earth with the help of a conducting wire.

Assertion: The lightening conductor at the top of high building has sharp pointed ends. Reason: The surface density of charge at sharp points is very high resulting in setting up of electric wind.

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What is lightning (b) How do the clouds get electrically charged ? (c) How does lightning strike a building ?