COMEDK · Physics · 17. Electrostatics
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
- A The graph shows the variation of the electric field intensity with distance from the centre of a uniformly charged conducting ring of radius \(R\).
- B The graph shows the variation of the electric field intensity with distance from the centre of a uniformly charged non conducting cylinder of radius \(R\).
- C The graph shows the variation of the electric field intensity with distance from the centre of a uniformly charged non conducting solid sphere of radius \(R\).
- D The graph shows the variation of the electric field intensity with distance from the centre of a uniformly charged conducting solid sphere of radius \(R\).
Answer & Solution
Correct Answer
(C) The graph shows the variation of the electric field intensity with distance from the centre of a uniformly charged non conducting solid sphere of radius \(R\).
Step-by-step Solution
Detailed explanation
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 \(E = \dfrac{kQr}{R^3}\), which implies \(E \propto r\). This corresponds to the linear increase in the graph for \(r R\), the electric…
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