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Question: Answered & Verified by Expert
A charged ball B hangs from a silk thread $S$ which makes an angle $\theta$ with a large charged conducting sheet $\mathrm{P}$, as show in the figure. The surface charge density $\sigma$ of the sheet is proportional to

PhysicsElectrostaticsJEE Main
Options:
  • A
    $\cos \theta$
  • B
    $\cot \theta$
  • C
    $\sin \theta$
  • D
    $\tan \theta$
Solution:
1188 Upvotes Verified Answer
The correct answer is:
$\tan \theta$


$\tan \theta=\frac{q \sigma}{\left(2 \varepsilon_{\circ}\right) m g}$

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