Question

Complete the following sentences:
Like charges …………….while unlike charges …………….each other.
A. attract, attract
B. repel, repel
C. attract, repel
D. repel, attract

Answer 1

Hint: Positive charge always attracts negative charge. Positive charges repel positive charges and same way negative charges repel negative charges.
Complete step by step answer:
In nature, two types of charges exist; positive charge and negative charge. When we rub Glass rod with silk cloth, the glass rod acquires positive charge and silk cloth acquires negative charge.
It is seen that positive charge always repeals positive charge and negative charge always repeals negative charge so we come to the conclusion that like charges repel each other. It is also seen that positive charge attracts negative charge and vice versa. So, from this, we come to the conclusion that unlike charges attract each other.
If we look at options, then option D fulfills the criteria i.e. like charges repel each other and unlike charges attract each other.

So, the correct answer is “Option D”.

Additional Information:
1. Smallest possible charge is equal to _{$ 1.6 X 10^-19 $} coulomb, which is actually the charge on an electron or proton.
2. Electric charge of a system is always conserved.

Note:
Electric charges are not affected if charged particles are in motion which means if a body carrying charge is moving then the total charge on it remains constant.