A rectangular parallelepiped is measured as . If its specific resistance is , then the resistance between its two opposite rectangular faces will be _______. [2023]

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Solution

Q.
A rectangular parallelopiped is measured as $1 cm \times 1 cm \times 100 cm$ . If its specific resistance is $3 \times 10^{- 7} Ω m$ , then the resistance between its two opposite rectangular faces will be _______ $\times 10^{- 7} Ω$ . [2023]

Ans.
(3)

$R = ρ \frac{l}{A} = \frac{3 \times 10^{- 7} \times (1 \times 10^{- 2})}{100 \times 1 \times 10^{- 4}} = 3 \times 10^{- 7} Ω$

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