A sphere has a charge of - 50 C- The absolute potential a point distance of 10-12- m from centre of the sphere is- - Radius of the sphere is -10-12- m -4500 V45times10-23- V 4-5times10-23- V45times10-24- V

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A sphere has a charge of +50 C. The absolute potential at a point at distance of 10−12 m from centre of the sphere is: ( Radius of the sphere is <10−12 m )4500 V45×1023 V 4.5×1023 V45×1024 V

A sphere has a charge of $+ 50 C$ . The absolute potential at a point at distance of $10^{- 12} m$ from centre of the sphere is:
( Radius of the sphere is $< 10^{- 12} m$ )
$4500 V$
$45 \times 10^{23} V$
$4.5 \times 10^{23} V$
$45 \times 10^{24} V$