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Home  >>  AIMS  >>  Class12  >>  Physics  >>  Electric Charges and Fields
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What charge would be required to electrify a sphere of radius $25cm$ so as to get a surface charge density of $\large\frac{3}{\pi}$$ C m^{-2}$?

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1 Answer

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Use $q= 4 \pi r^2 \sigma$
Hence A is the correct answer.
answered May 29, 2014 by meena.p
 

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