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Two equal positive charges +Q each lie on y axis at (0, a) and (0,-a) . The electric field strength E at a point (x, 0) satisfies:

Options

  1. AE= 1 4 ₀ 2 Q a (x^2+a^2 )^ 3 / 2
  2. Bfor large values of x( i.e x a) , the electric field E 1 x^2
  3. Cfor x 0, E is maximum at x= a 2

Correct answer

C. for x 0, E is maximum at x= a 2

Step-by-step solution

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