Electrical charges

Electric charge is a physical property of matter which causes it to experience a forcewhen near other electrically charged matter. Electric charge comes in two types, calledpositive and negative. Two positively charged substances, or objects, experience a mutual repulsive force, as do two negatively charged objects. Positively charged objects and negatively charged objects experience an attractive force. The SI unit of electric charge is the coulomb (C)


Charge is the fundamental property of a matter that exhibit electrostatic attraction or repulsion over other matter. Electric charge is a characteristic property of many subatomic particles. The charges of free-standing particles are integer multiples of the elementary charge e; we say that electric charge isquantized. Michael Faraday, in his electrolysis experiments, was the first to note the discrete nature of electric charge. Robert Millikan's oil-drop experiment demonstrated this fact directly, and measured the elementary charge.

positive electric charge

negative electric charge

Charge is the fundamental property of a matter that exhibit electrostatic attraction or repulsion over other .

resources

http://en.wikipedia.org/wiki/Electric_charge