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the ratio of electrostatic force FE to gravitational force FG between two protons each of…

the ratio of electrostatic force FE to gravitational force FG between two protons each of charge e and mass m, at a distance d is
  • A.
    e/4πԐoGm
  • B.
    e2/Gm2
  • C.
    Gm2/4πԐoe2
  • D.
    e2/4πԐoeGm2
Correct Answer: Option D
Explanation

Electrostatic force = FE = e2/4λEod2
Gravitational force = FG = GM2/d2

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