9781422275993

Properties of electric charges Electric charges have several unique properties: ● ● Like charges repel each other, while unlike charges attract.

● ● An electric charge is denoted by the symbol e . It has a value equal to 1.6x10 19 . ● ● Motion of an object does not affect its charge. ● ● Electric charges are always con- served. ● ● The total amount of charge on an object is the sum total of all the charges spread in the different directions of the object.

Inside an atom

Attract

Repel

SCIENCE FACTS

● ● Contraction of heart muscles takes place due to the presence of electric current in the body. ● ● The neutron of an atom is neutral. It does not have any kind of charge on it.

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ELECTRICITY