9781422275993

S tatic electricity simply refers to the electricity produced by stat- ic charges because of friction be- tween two objects. Static charges are stationary or immovable charges. These charges collect on the up- per surface of an object and remain there unless disturbed. An object acquires a static charge when it is rubbed against another object. Static Electricity

Lightning Rod Benjamin Franklin invented the light- ning rod in 1752. A lightning rod is a metal rod that is placed at the top of a building. The other end of the rod is connected to the ground with a wire. Lightning rods protect buildings from the effects of lightning.

Benjamin Franklin

SCIENCE FACTS

● ● A bolt of lightning can measure up to three million volts (3,000 kv)! ● ● Synthetic clothes develop more static charges than cotton fabrics.

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SCIENCE & TECHNOLOGY