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JIPMER2018PhysicsElectrostatics

If point charges Q ₁=2 10⁻⁷ C and Q ₂=3 10⁻⁷ C are at 30 cm separation, then find electrostatic force between them

Options

  1. A2 10⁻³ ~N
  2. B6 10⁻³ ~N
  3. C5 10⁻³ ~N
  4. D1 10⁻³ ~N

Correct answer

B. 6 10⁻³ ~N

Step-by-step solution

Electrostatic force, F = k Q ₁ Q ₂ r ^2 =9 10^9 2 10⁻⁷ 3 10⁻⁷ (30 10⁻² )^2 =6 10⁻³ ~N

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