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}} $
