Rankers Physics

Electric Potential: Practice Problem & Solution

Figure shows a charged conductor of irregular shape. If \ ( \sigma_{A},\sigma_{B} and \sigma_{C}\) are the surface charge densities at A, B and C respectively, then : Electric Potential diagram: Figure shows a charged conductor of irregular shape.
\[\sigma_{A}=\sigma_{B} = \sigma_{C}\]
\[\sigma_{A}<\sigma_{B} < \sigma_{C}\]
\[\sigma_{A}>\sigma_{B} > \sigma_{C}\]
\[\sigma_{A}=\sigma_{B} < \sigma_{C}\]

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Electric Potential. Understanding the underlying formula is key to arriving at the correct answer below:

Pointed ends have more surface charge density so,

\[\sigma_{A}>\sigma_{B} > \sigma_{C}\]

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