Electrical Field A positive charge or a negative charge is said to create its field around itself. If a charge exerts a force on charge placed near it, it may be stated that since is in the field of , it experiences some force, or it may also be said that since charge is inside…

Coulomb’s Law. If two stationary and point charges and are kept at a distance r, then it is found that force of attraction   or repulsion between them is i.e., ; (k = Proportionality constant) (1) Dependence of k : Constant k depends upon system of units and medium between the two charges. (i) Effect…