Answer:
By gaining equal number of electrons to the charge it carries.
Explanation:
A positively charge metal ball will become if it gains equal number of electrons to the charge it carries.
Generally, a body becomes charged when they lose or gain electrons. The loss or gain of electrons by a body is common place feature. Merely rubbing of substances against each other will cause a loss or gain of electrons.
Electrons are negatively charged particles in an atom
Protons are positively charged particles.
In a neutral atom, the number of protons and electrons must be the same.
A positively charge body will have more number of protons than electrons.
To make a positively charged metal become neutral, we bring it to the vicinity of electrons.
