Two charges ` Q_1 and Q_2 ` are separated by distance r. Under what conditions will the electric field be zero on the line joining them (i) between the charges (ii) outside the charge?

Two charges of 1.0xx10^(-6) coulomb are separated by a distance 10 cm . Where will the electric field be zero on the line joining the two 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 ?

Two point charge +q and -q are separated by a distance d. Where besides at infinity is the electric potential zero?

Two point charges +Q and -Q are separated by a certain distance. The resultant electric field is parallel to the line joining the charges at the points

If Two charges +q and +4p are separated by a distance .d. and a point Q is charge placed on the line joining the above two charges and in between them such that ali charges are in equilibrium. Then the charge Q and it.s position are

Two point charges Q and - Q //4 are separated by a distance X . Then . force between this two charge

If Two charges +q and +4q are separated by a distance d and a point charge Q is placed on the line joining the above two charges and in between them such that all charges are in equilibrium. Then the charge Q and it's position are