PHYSICS. ELECTROSTATICS Important Facts

● S.I Unit of charge is Coulomb. 
● Charge is conserved, quantified and remains unaffected by motion.
● A neutral body when positively charged, loses electrons and its mass decreases slightly. 
● According to Coulomb's law, force between two charges q1 and q2 separated by a distance r 
           Vector F = 1/4piEo × q1q2/r^2
● Electric field strength is the force acting per unit test charge 
Vector E = limq0-0 vector F / q0
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