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MHT CET202124 Sep 2021Morning ShiftPhysicsElectrostaticsActual

Three charges - q , Q and - q are placed at equal distances on a straight line. If the total potential energy of the system of three charges is zero, then the ratio Q q is

Options

  1. A1 : 2
  2. B1 : 1
  3. C1 : 4
  4. D1 : 3

Correct answer

C. 1 : 4

Step-by-step solution

Potential energy of the system is zero. aligned & 1 4 ₀ ( - q Q x + - q Q x + (- q )(- q ) 2 x )=0 & -2 qQ + q ^2 2 =0 & 2 Q = q 2 or Q q = 1 4 aligned

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