Force betqeen two identical bar magnets whose centres are r apart is 6.4 N , when their axis are in same line if the separation is increased to 2r . The force between them is reduced to

Force between two identical bar magnets whose centres are r metre apart is 4.8 N , when their axes are in the same line. If separation is increased to 2r , the force between them is reduced to

Gravitational force between two masses at a distance 'd' apart is 6N. If these masses are taken to moon and kept at same separation, then the force between them will become :

The force of attraction between two bodies at certain separation is 10 N. What will be the force of attraction between them if the separation between them is reduced to half?

The force of attraction between two bodies at a certain separation is 10 N. What will be the force of attraction between them if the separation is reduced to half ?

The force between two point charges in air is 100 N. If the distance between them is increased by 50%, then the force between two charges will be nearly equal to

How does the force of gravitation between two objects change when the distance between them is reduced to half ?

Electrical force between two point charge is 200N , if we increase 10% charge on one of the charge and and decrease 10% charge on other then electrical force between them for the same direction becomes.

Force between two charges when placed in free space is 10N. If they are in a medium of relative permittivity 5, the force between them will be

The force between two charges 0.06m apart is 5N. If each charge is moved towards the other by 0.01 m, then the force between them will become

The force of repulsion between two point charges is F, when they are d distance apart. If the point charges are replaced by conducted sphereas each of radius r and the charges remain same. The separation between the centre of sphere isd, then force of repulsion between them is