Two point charges `+10muC` and `-10muC` are separated by a distance of 40 cm in air. How much work is required to separate the two charges infinitely away from each other?

two charges 7 μ C and − 2 μ C (and with no external field) placed at ( − 9 c m , 0 , 0 ) and (9 cm, 0,0) respectively.How much work is required to separate the two charges infinitely away from each other ?

An electric dipole is formed by two equal but opposite charges , each of magnitude 1mu C , separated by a distance of 5 cm. what is the magnitude of the torque required to place the dipole at right angles to an electric field of intensity 3 xx 10^5 N * C ^ ( - 1 ) ?

Two point charge q_(1) = 10 xx 10^(-8)C and q_(2) = -2 xx 10^(-8)C are separated by a distance of 6 cm in air. (i) The distance from q_(1) of the point of zero electric potential is

Two point charge q_(1) = 10 xx 10^(-8)C and q_(2) = -2 xx 10^(-8)C are separated by a distance of 6 cm in air. (ii) The electrostatic potential energy of the system is

Two charges of +40 esu and -35 esu separated by a distance of 10 cm, exert 4 dyn force on each other. Determine the dielectric constant of the medium.

Two point charges each of magnitude +q are placed at a distance r from each other. Draw the lines of force in this case.

Two point charges of 10 esu and 40 esu are located at points A and B seperated by a distance 4 cm. Find the electric field intensity at a point halfway between the charges.

Two charges, + q and -q are separated by a distance d. At which points will the resultant electric field intensity be directed parallel to the line joining the charges ?