Two point charges having a total charge Q are at a distance x apart. Find the value of each charge, so that the force they exert on one another is maximum.

Two point charges having a total charge Q are distance x apart. Find the value of each so that the force they exert on each other is maximum.

Two point charges having equal charges separated by 1m distances experience a force of 8N. What will be the force experienced by them , if they are held in water, at the same distance ? ( take , K_(" water" ) = 80 )

Two charged particles are a distance 1 mm apart. Find the minimum Coulomb force between them.

Two point charges of +3mu C each are 1m apart. At what point on the line joining the charges, the electric field intensity be zero?

Two identical charges are placed at a separation of 1.0 m. What should be the magnitude of each charge, so that each one repels the other with a force of 36 kg-wt? (Take, g -10 ms ^(-2 ) )