COMEDK202510 May 2025Evening ShiftPhysicsElectrostaticsActual
The electric field versus distance graph is shown as given. Select the correct statement from the following. E- electric field R-radius r - distance from the centre
Options
- AThe graph shows the variation of the electric field intensity with distance from the centre of a uniformly cha
- BThe graph shows the variation of the electric field intensity with distance from the centre of a uniformly cha
- CThe graph shows the variation of the electric field intensity with distance from the centre of a uniformly cha
- DThe graph shows the variation of the electric field intensity with distance from the centre of a uniformly cha
Correct answer
C. The graph shows the variation of the electric field intensity with distance from the centre of a uniformly cha
Step-by-step solution
The electric field E inside a uniformly charged non-conducting solid sphere of radius R at a distance r from the center is given by E = kQr R^3 , which implies E r . This corresponds to the linear increase in the graph for r Outside the sphere, for r > R , the electric field is given by E = kQ r^2 , which implies E 1 r^2 . This corresponds to the curve decreasing as r increases for r > R . The graph shows a linear increase up to r = R and a non-linear decrease for r > R , which is the characteristic behavior of the