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Electrostatics question

2019 · 10 Apr · Shift 2 · Q65
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Electrostatics question

2019 · 10 Apr · Shift 2 · Q65

JEE MainPhysicsElectrostaticsMCQ+4 / −1
In free space, a particle A of charge 1 μ\muμ C is held fixed at a point P. Another particle B of the same charge and mass 4 μ\muμ g is kept at a distance of 1 mm from P. If B is released, then its velocity at a distance of 9 mm from P is : [Take 14π∈0=9×109Nm2C−2]\left[ {Take\,{1 \over {4\pi { \in _0}}} = 9 \times {{10}^9}N{m^2}{C^{ - 2}}} \right][Take4π∈0​1​=9×109Nm2C−2]
  1. A
    1.0 m/s
  2. B
    6.32 ×\times× 104 m/s
  3. C
    2.0 ×\times× 103 m/s
  4. D
    1.5 ×\times× 102 m/s
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