JEE Mains · Physics · STD 12 - Electric potential and capacitance
- JEE Mains 2025
- Medium
- MCQ
Electric charge is transferred to an irregular metallic disk as shown in figure. If \(\sigma_1, \sigma_2, \sigma_3\) and \(\sigma_4\) are charge densities at given points then, choose the correct answer from the options given below:
Pick an option to check your answer.
Answer & Solution
Correct Answer
(A) A, B and C Only
Step-by-step Solution
Detailed explanation
\(\begin{aligned} & \sigma \propto \frac{1}{\mathrm{ROC}} \\ & (\mathrm{ROC})_1 \lt (\mathrm{ROC})_3 \lt (\mathrm{ROC})_2=(\mathrm{ROC})_4 \\ & \sigma_1 \gt \sigma_3 \gt \sigma_2=\sigma_4\end{aligned}\)
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