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Question

If two similarly charged particles are brought near one another, the potential energy of the system will :
  1. decrease
  2. increase
  3. remains the same
  4. equal to the K.E.

A
increase
B
remains the same
C
decrease
D
equal to the K.E.
Solution
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Electrostatic P.E=KQ1Q2r where K=14πϵo
Now for both similar charges, P.E>0
Thus decreasing r will increase P.E

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