A charged ball $B$ hangs from a silk thread $S$, which makes an angle $\theta $ with a large charged conducting sheet $P$, as shown in the figure. The surface charge density $\sigma $ of the sheet is proportional to
A charged ball $B$ hangs from a silk thread $S$, which makes an angle $\theta $ with a large charged conducting sheet $P$, as shown in the figure. The surface charge density $\sigma $ of the sheet is proportional to
- [AIEEE 2005]
- A
$\sin \theta $
- B
$\tan \theta $
- C
$\cos \theta $
- D
$\cot \theta $
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- [AIPMT 2008]
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