Two thermocol balls held close to each other but move away from each other, when they are released, name the force which might be responsible for this phenomenon. Explain.

Electrostatic force is the force which might be responsible for this phenomenon because:

i. Electrostatic force is the force which is produced when charge bodies come together.

ii. It is given that two thermocol balls have similar charges.

iii. As we know that similar charges repel each other.

iv. Hence, they move away from each other due to the repulsion between them.