Question
Physics Question on Electric charges and fields
Two point charges (-q) and (+4q) are placed at that separation ‘r’. Where should a third charge be placed so that the entire system of charges becomes in equilibrium?
A
At separation ‘r’ from -q on the extreme side of -q
B
At separation ‘r’ from 4q on the extreme side of 4q
C
At separation ‘r/2’ from -q in between the two charges
D
At separation ‘r/4’ from 4q in between the two charges
Answer
At separation ‘r’ from -q on the extreme side of -q
Explanation
Solution
The correct answer is (A): At separation ‘r’ from -q on the extreme side of -q