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  4. Metallic sphere of radius R is charged to potential V. Then charge q is proportional to

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Q. Metallic sphere of radius $R$ is charged to potential $V$. Then charge $q$ is proportional to

Electrostatic Potential and Capacitance

Solution:

As charge, $q=CV=\left(4\pi\varepsilon_{0} R\right)V$
$\therefore $ $q$ depends on both $V$ and $R$