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NEETPhysicsElectrostatics

Two point charges, (q₁=+3, C ) and (q₂=-6, C ), are placed at points (A(0,0) ) and (B(4,0) ) on the x-axis. 1. Statement 1: Calculate the electrostatic force between the charges using Coulomb's law. 2. Statement 2: What is the direction of the force on charge (q₂ ) ? 3. Statement 3: Find the electric field at the midpoint between the two charges.

Options

  1. A(10.1, N ), Towards (q₁ ), (2.25 10^4, N / C )
  2. B(12.1, N ), Towards (q₂, 1.5 10^4, N / C )
  3. C(10.1, N ), Towards (q₂, 1.5 10^4, N / C )
  4. D(12.1, N ), Towards (q₁ ), (2.25 10^4, N / C )

Correct answer

C. (10.1, N ), Towards (q₂, 1.5 10^4, N / C )

Step-by-step solution

- Force: Use Coulomb's law, (F=k |q₁ q₂ | r^2 ), where (r=4, m ). - Direction: Since (q₁ ) is positive and (q₂ ) is negative, they attract each other. - Electric Field: The net field at the midpoint due to both charges is found by calculating the electric field due to each charge and considering the direction.

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