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Question: Answered & Verified by Expert
A charge $Q$ is distributed uniformly in a sphere (solid). Then, the electric field at any point $r$, where, $r \lt R$ ( $r$ is the radius of sphere) varies as :
PhysicsElectrostaticsJIPMERJIPMER 2006
Options:
  • A $r^{1 / 2}$
  • B $r^{-1}$
  • C $r$
  • D $r^{-2}$
Solution:
1156 Upvotes Verified Answer
The correct answer is: $r$
. Electric field intensity at a point inside the sphere $\quad E=\frac{Q}{4 \pi \varepsilon_0 R} r$
$\therefore \quad E \propto r$

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