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JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

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A charged spherical conductor has a surface density of

0.7 \mathrm{~Cm}^{-2}

. When its charge is increased by

0.44 \mathrm{~C}

, the charge density changes by

0.14 \mathrm{Cm}^{-2}

. Find the radius of the sphere and initial charge on it.

View answer and explanation

Correct option: A

2.2 \mathrm{~C}

,

0.5 \mathrm{~m}

Option A (

2.2 \mathrm{~C}

,

0.5 \mathrm{~m}

) is correct because the radius and initial charge are calculated using the given surface charge densities and the change in charge.

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