If the line charge densities are λ and -λ. as shown in figure. Find the electric field at P.

Options

• Option A

  $\frac{2k\lambda}{x}cot\left(\frac{\theta}{2}\right)$

• Option B

  $\frac{4k\lambda}{x}cot\left(\frac{\theta}{2}\right)$

• Option C

  $\frac{2k\lambda}{x}tan\left(\frac{\theta}{2}\right)$

• Option D

  $\frac{4k\lambda}{x}tan\left(\frac{\theta}{2}\right)$