defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Electric Fields and Gauss' Law Applications of Gauss’s Law
If the linear charge density of an infinitely long straight uniformly charged wire is λ, then the force on the charge q present at a distance r from the wire is:
1
\(\frac{\lambda q}{2\pi \epsilon_o r}\)
2
\(\frac{\lambda^2 q}{2\pi \epsilon_o r}\)
3
\(\frac{\lambda q}{2\pi \epsilon_o r^2}\)
4
\(\frac{\lambda^2 q}{2\pi \epsilon_o r^2}\)