Is there any lower limit to the electric force between two
. particles placed at a separation of 1 cm?

Is there any lower limit to the electric force between two particles placed at a certain distance?

What is the smallest electric force between two charges placed at a distance of 1.0m ?

In stationary waves, distance between a node and its nearest antinode is 20 cm . The phase difference between two particles having a separation of 60 cm will be

What is the force of attraction between two masses each of 1 kg kept at a separation of 1 m?

State Coulomb's law of electric force between two charged bodies.

Calculate force between two charges of 1C each separated by 1m in vacuum.

Coulomb's law states that the electric force becomes weaker with increasing distance. Suppose that instead, the electric force between two charged particles were independent of distance. In this case, would a neutral insulator still be attracted towards the comb.

Find out the electrostalic force between two point charges placed in air (each of +1 C) if they are separately by 1 m.

(a) Two protons are placed at some separation in vacuum. Find the ratio of electric and gravitational force acting between them. (b) Two point charges are placed at separation 3 m in vacuum. What can be the minimum force between them. (c ) A charge Q is to be divided on two objects. What should be the value of the charges in the objects so that the force between them is maximum ? (d) Two insulating small spheres are rubbed against each other and placed 1.6 cm apart. If they attract each other with a force of 0.9 N , how many electrons were transferred from one sphere to the other during rubbing ?

An alpha - particle is the nucleus of a helium atom. It has a mas m=6.64xx10^-27 kg and as charge 1=+2e=3.2xx10^-19 c. compare the force of the electric repulsion between two alpha -particles with the force of gravitational attraction between them.