Two charge are placed as shown in fig. Where should be a third charge be

Two fixed charges are as shown. Where should the third charge be placed so that its in equilibrium?

+4e and +e are two charges separated by a distance 'a' m.Where should be a third charge 'q' be placed so that it is in equilibrium?

Two negative charges each of 1 unit and a positive charge q are placed on a straight line. Where should the charge q be placed and what should be its value for equilibrium of the charges? Is this equilibrium stable, unstable or neutral ?

(a) Two point charges Q and 16 Q are fixed at separation d . Where should a third point charge be placed between them so that it experiences no force I.e. in equilibrium ? (b) In the previous problem , if we replace Q by - Q , where should the third charge be placed on the joining the charges so that it is equilibrium ? (c ) Three point charges Q , q and Q are placed at x = 0 , x = d//2 and x = d . Find q in terms of Q so that all charges are in equilibrium. (d) Two point charges 9 Q and 25 Q are placed at separation d . Where should a third charge q be placed between them so that all charges are in equilibrium ? Also find the value of q and its nature.

Two charges 2muC and 1muC are placed at a distance of 10cm. Where should a third charge be placed between them so that it does not experience any force.

Two charges 2muC and 1muC are placed at a distance of 10cm. Where should a third charge be placed between them so that it does not experience any force.

Two charges 2.0xx10^(-6)C and 1.0xx10^(-6)C are placed at a separation of 10 cm. Where should a third charge be placed such that it experiences no net force due to these charges?

Two chargea 2.0xx10^(-6) C and 1.0xx10^(-6) C are placed at a separation of 10 cm. where should a third charge be placed such that it experiences no net force due to these charges.

Two chargea 2.0xx10^(-6) C and 1.0xx10^(-6) C are placed at a separation of 10 cm. where should a third charge be placed such that it experiences no net force due to these charges.