Matter consists of atoms. An atom consists of small, dense, positively charged nucleus with the negative electrons orbiting about the nucleus, in a manner similar to that of planets orbiting about the sun in the solar system. Any two bodies in the universe exerts a force on each other which is perpendicular to the product of their mases and inversely proportional to the square of the distance between them. the force between charged bodies is called electric force. this force is attractive if the bodies carry charges of opposite sign and repulsive if the charges are of the same sign. In this study unit the simple electrostatic phenomena and electric force is discussed in details.