Electrostatics Question 159

Question: A charge $ q _{1} $ exerts some force on a second charge $ q _{2} $ . If third charge $ q _{3} $ is brought near, the force of $ q _{1} $ exerted on $ q _{2} $ [NCERT 1971]

Options:

A) Decreases

B) Increases

C) Remains unchanged

D) Increases if $ q _{3} $ is of the same sign as $ q _{1} $ and decreases if $ q _{3} $ is of opposite sign

Show Answer

Answer:

Correct Answer: C

Solution:

The force will still remain $ \frac{q _{1}q _{2}}{4\pi {\varepsilon _{0}}r^{2}} $



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