Two identical isolated conducting spheres are picked for an experiment. Only one of them is charged. If the spheres are now briefly brought into contact and then separated by a small distance, the two spheres would experience

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As the two spheres are brought into contact, the charge on the charged sphere is distributed equally between the two spheres. Now they both have the same charge. Because they have the same charge they are going to repel each other. 
The two spheres are going to experience repulsion.

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When the spheres are brought into contact and then separated by a small distance, the two spheres would experience a repulsive forc.

Distribution of charges in spheres

When the charged sphere is brought close to the uncharged sphere, the uncharged sphere becomes charged by induction.

The quanity of charge from the charged sphere will be distributed equally among the two identical spheres.

The total charge is determined as;

Q(t) = Q1 + Q2

Where; Q1  and Q2 are the quanity of the charges in each sphere;

Q1 = Q2 = Q

Q(t) = 2Q

Thus, when the spheres are brought into contact and then separated by a small distance, the two spheres would experience a repulsive force since both spheres have equal and similar charges.

Learn more about force between charges here: https://brainly.com/question/17692887