A spherical shell, made of material of electrical conductivity -Turito

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Physics-

General

Easy

Question

A spherical shell, made of material of electrical conductivity $fraction numerator 10 to the power of 9 end exponent over denominator pi end fraction left parenthesis capital omega minus m right parenthesis to the power of negative 1 end exponent$ has + - thickness t = 2 mm and radius r = 10 cm. In an arrangement, its inside surface is kept at a lower potential than its outside surface The resistance offered by the shell is equal to
"

$5 π \times 10^{- 12} Ω$
$2.5 π \times 10^{- 12} Ω$
$5 \times 10^{- 12} Ω$
$5 \times 10^{- 11} Ω$

The correct answer is: $5 cross times 10 to the power of negative 11 end exponent capital omega$

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