Length of a hollow tube is $5\,m$, it’s outer diameter is $10\, cm$ and thickness of it’s wall is $5\, mm$. If resistivity of the material of the tube is $1.7 \times 10^{-8} \,\Omega m$ then resistance of tube will be
  • A$5.6 \times 10^{-5} \,\Omega$
  • B$2 \times 10^{-5}\,\Omega$
  • C$4 \times 10^{-5} \,\Omega$
  • D
    None of these
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