CUET Preparation Today
An infinitly long wire is charged uniformly with charge density $\lambda$ and placed in air, the electric field at distance r from wire will be: |
$\frac{1}{4 \pi \varepsilon_0} \frac{\lambda}{r}$ $\frac{1}{4 \pi \varepsilon_0} \frac{\lambda}{r^2}$ $\frac{\lambda}{2 \varepsilon_0}$ $\frac{\lambda}{2 \pi \varepsilon_0 r}$ |
$\frac{\lambda}{2 \pi \varepsilon_0 r}$ |
The correct answer is Option (4) → $\frac{\lambda}{2 \pi \varepsilon_0 r}$ |
