Physics
To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor

Should be made of a good conductor but can be of any shape
Should be made of a good conductor like copper with sharp-pointed edges
Should be in the form of a vertical rod
Can be of any shape

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Physics
An integrated circuit is more advantages than a coventional circuit because

All listed here
If a part of the integrated circuit fails the entire circuit is simply replaced
They make the electric equipments more reliable and easier for servicing
A faulty part of a conventional circuit may be difficult to locate and repair

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