Question

If an object becomes negatively charged after rubbing, it means that:

• A. It has lost some electrons
• B. It has gained some electrons
• C. It has gained some protons
• D. It has lost some protons

Answer 1

The correct option is B It has gained some electrons

As protons are present inside the nucleus of the atom, they can not be added or removed by a process like rubbing.
Electrons are negatively charged subatomic particles found outside the nucleus of the atom and can be exchanged through the process of rubbing.
Hence, the object must have gained some electrons which made it negatively charged.