JEE Main202116 Mar 2021Evening ShiftPhysicsElectrostaticsActual
Find out the surface charge density at the intersection of point x = 3 m plane and x -axis, in the region of uniform line charge of 8 nC m - 1 lying along the z -axis in free space.
Options
- A0 . 424   nC   m - 2
- B47 . 88   nC   m - 2
- C0 . 07   nC   m - 2
- D4 . 0   nC   m - 2
Correct answer
A. 0 . 424   nC   m - 2
Step-by-step solution
2   K λ r = σ ε 0    x = 3   m ⇒ σ = 0 . 424 × 10 - 9   C   m - 2