The variation of electrostatic potential with radial distance $r$ from the centre of a positively charged metallic thin shell of radius $R$ is given by the graph
NEET 2020,AIIMS 2013, Medium
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for $r$
$V =\frac{ q }{4 \pi \varepsilon_{0} R }=$ constant
for $r \geq R$
$V =\frac{ q }{4 \pi \varepsilon_{0} r }= V \propto \frac{1}{ r }$
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