There are 2 ways an Object may acquire an excess or deficiency of charge by transfer of electrons.
1- When electrons are received :
When Electrons are received negative charge is induced.
2- When electrons are given :
When electrons are received positive charge is induced.
the options for this question are
A. Electric force
B. Heating
C. Shaking
D. By Rubbing
By rubbing an object with another object some of the free electrons may get transferred from one object to other.
One object with get the positive charge while another gets negative charge.
So answer is D . Rubbing
So for below questions
Object may acquire an excess or deficiency of charge by?
The act of Rubbing against another object
Two objects when rubbed together, get charged. The charges on them are?
Equal and opposite. one will have positive the other will have negative
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