Question

A rod lies along the X-axis with one end at the origin and the other at x→∞. It carries a uniform charge λCm⁻¹. The electric field at the point x=-a on the axis will be​

Answer 1

Answer ⇒  E = kλ/a

Explanation ⇒ We know that if L is the length of the rod in which the charge is uniformly distributed as λ C/m.

Then, Electric field at an distance of l is given by the relation,

E = kλ[1/l - 1/(l + L)]

Now, here L = ∞, and l = a

∴ E = kλ[1/a - 0]

∴ E = kλ/a

Hence, the electric field on the negative x axis due to Uniform charge distribution of rod is kλ/a.

Hope it helps.

Answer 2

$\huge{\fbox{\fbox{\bigstar{\mathfrak{\red{Answer}}}}}}$