Quantization of Electric Charge

Quantization of charge Charges are integral multiples of a basic unit of charge denoted by e. Thus charge q on a body is always given by q = ne. where n is any integer, positive or negative.

 By convention, the charge on an electron is taken to be negative; therefore charge on an electron is written as –e and that on a proton as +e. The fact that electric charge is always an integral multiple of e is termed as quantization of charge.

In the International System (SI) of Units, a unit of charge is called a coulomb and is denoted by the symbol C.In this system, the value of the basic unit of charge is e = 1.602192 × 10^–19 C. 

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Some of these questions which may be asked in your Board Examination 2012-2013

Q1: When a plastic comb is passed through dry hair, what type of charge is acquire by comb?

Q2: Does motion of a body affect its charge?

Q3: What is the origin of frictional forces?

Answer these questions in comment box and help your friends