10th Class Physics MCQs Chapter No.4 Electrostatics

Two uncharged objects A and B are rubbed against each other. When object B is placed near a negatively charged object C, the two objects repel each other. Which of these statements is true about object A?

A positive and a negative change are initially 4 cm apart. When they are moved closer together so that they are now only 1 cm apart, the force between them is

Capacitance is defined as

Two charged spheres are separated by 2 mm. which of the following would produce the greatest attractive force?

The coulomb’s law is valid for the charges which are

Electric field lines

A positive electric charge

Five joules of work is needed to shift 10 C of charge from one place to another. The potential difference between the places is

According to coulomb’s law, what happens to the attraction of two oppositely charged objects as their distance of separation increases?

An object gains excess negative charge after being rubbed against another object,which is:

When you rub a plastic rod against your hair several times and put it near some bits of paper, the pieces of papers are attracted towards it . what does this observation indicate?