When a body is charged by rubbing, its weight

Step-by-step solution

When a body is charged by rubbing, there is a transfer of electrons from one body to another. Electrons possess a small but definite mass ( m_e = 9.1 10⁻³¹ kg). If the body gains electrons, it acquires a negative charge and its mass, and consequently its weight, increases slightly. If the body loses electrons, it acquires a positive charge and its mass, and consequently its weight, decreases slightly. Thus, the weight of the body may increase slightly or decrease slightly depending on whether it gains or loses elec