What is Electrical Charge? Basic Concept

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What is Electrical Charge? Basic Concept
« on: June 23, 2015, 12:38:22 PM »

The   concept   of   electrical charge   is   the   underlying   principle   for   explaining   all electrical  phenomena.  Also  the  most  basic  quantity  in  an  electric  circuit  is  the  electric charge.  We  all  experience  the  effect  of  electric  charge  when  we  try  to  remove  our  wool sweater and have it stick to our body or walk across a carpet and receive a shock.

We know from elementary physics that all matter is made of fundamental buildings blocks known as atoms and that each atom consists of electrons, protons, and neutrons. We also know that the charge e on an electron is negative and equal in magnitude to 1.602×10^-19C,  while  a  proton  carries  a  positive  charge  of  the  same  magnitude  as  the  electron.  The presence of equal numbers of protons and electrons leaves an atom neutrally charged.