ElectrostaticsHard
Question
You are given an arrangement of three point charges q, 2q and xq separated by equal finite distances so that electric potential energy of the system is zero. Then the value of x is :
Options
A.− 
B.
C.
D.
Solution
P.E. of system = 
= 0 where a is distance between charges.
or 2 + 3x = 0 ∴ x = −
= 0 where a is distance between charges.or 2 + 3x = 0 ∴ x = −
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