Two equal and unlike poles placed 5cm apart in air attract each other with a force of `14.4times10^(4)` N.How far from each other should they be placed so that the force of attraction will be `1.6times10^(4)N .`

Two equal magnetic poles placed 25 cm apart in air exert a fore o 4xx10^-3N on each other. What should be the distance between them, so that force exerted by them on each other becomes 0.1 N?

Two equal charges placed in air and separated by a distance of 2 m repel each other with a force of 10^-4 N. Calculate the magnitude of either of the charges.

Two equal charges placed in air separated by a distance 3 m repel each other with force 0.1 g f. Calculate the magnitude of either of the charges.

Two similar charges repel each other with a force of 44.1 Newton when placed 2cm apart in air. Calculate the strength of charge.

Two points charges of +3muC and +8muC repel each other with a force of 40 N . A charge of -5muC is added to each of them. Now, the force will be

Two magnetic poles, one of which is four times stronger than the other exert a force of 5 gf on each other, whe placed at distance of 10 cm in air. Find the strength of each pole.

The distance between two equal balls having unlike charges is 2cm. The radii of the balls are much less than the distance between them. The balls attract each other with a force of 36xx10^(-5) N. After the ball have been connected by a wire and latter has been removed, the balls repel each other with a force of 20. 25xx10^(-5)N. Determine the original charges on the balls