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Charge vs Potential in Spherical Conductor

Value of elec...

Question

Value of electric potential at the center of uniformly charged non conducting sphere is 30 volt then what will be value of potential at surface.

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Solution

$\frac{3 K Q}{2 R} = 30 V$
$∴ \frac{K Q}{R} = 20 V$
$∴$ Potential at surface $= 20 V .$

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