The charge given to a hollow sphere of radius $10\, cm$ is $3.2×10^{-19}\, coulomb$. At a distance of $4\, cm$ from its centre, the electric potential will be
The charge given to a hollow sphere of radius $10\, cm$ is $3.2×10^{-19}\, coulomb$. At a distance of $4\, cm$ from its centre, the electric potential will be
- A
$28.8 \times {10^{ - 9}}\,volts$
- B
$288\,volts$
- C
$2.88\, volts$
- D
$Zero$
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