Question

Give reason: Mass of a body decreases slightly when it is negatively charged.

Answer 1

Effect on Mass due to Charge

1. A body becomes negatively charged only when some electrons are transferred from the body.
2. The body loses some electrons, Hence its mass decrease slightly.
3. Mass of a body decreases only when body give some electrons to some other body. A body is charged either by the transfer of electrons.

Therefore, the mass of a body decreases only when body gives some electrons to some other body.