Find the resistance of a hollow cylinder of inner radius 'a' and outer radius b chose ends are connected to a potential difference E. ( $ρ$ : resistivity).

\frac{ρ l}{π a^{2}}

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\frac{ρ l}{π b^{2}}

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\frac{ρ l}{π (b^{2} - a^{2})}

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Solution

The correct option is C $\frac{ρ l}{π (b^{2} - a^{2})}$

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Find the resistance of a hollow cylinder of inner radius 'a' and outer radius b chose ends are connected to a potential difference E. (ρ: resistivity).

The correct option is C ρlπ(b2−a2)

Find the resistance of a hollow cylinder of inner radius 'a' and outer radius b chose ends are connected to a potential difference E. ( $ρ$ : resistivity).

The correct option is C $\frac{ρ l}{π (b^{2} - a^{2})}$