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A conducting sphere of radius $R$ is given a charge $Q.$ The electric potential and the electric field at the centre of the sphere respectively are
  • A$0 $, $\frac{Q}{{4\pi {\varepsilon _0}{R^2}}}$
  • B$\frac{Q}{{4\pi {\varepsilon _0}{R }}}$ ,$0$
  • C$\frac{Q}{{4\pi {\varepsilon _0}{R^{}}}}$ $,\frac{Q}{{4\pi {\varepsilon _0}{R^2}}}$
  • D$0,0$
AIPMT 2014, Easy
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