calculate the resistance of a copper wire of length 50 M long and diameter 1 mm. given resistance of copper is 1.7 into 10 to the power minus 8 coulomb metre
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Answered by
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R = ρ*l / A
where ρ is resistivity and here ρ = 1.7 * 10⁻⁸ Ωm
l is length of conductor and her l = 50 m
A is area and here A = πr² = π * 0.5² * 10⁻⁶ m²
R = 1.7 * 10⁻⁸ * 50 / π * 0.5² * 10⁻⁶
= 1.7 * 25 * 7 / 22 = 13.5 Ω
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Answered by
14
Answer:
here is your answer mate...
Explanation:
R = ρ*l / A
where ρ is resistivity and here ρ = 1.7 * 10⁻⁸ Ωm
l is length of conductor and her l = 50 m
A is area and here A = πr² = π * 0.5² * 10⁻⁶ m²
R = 1.7 * 10⁻⁸ * 50 / π * 0.5² * 10⁻⁶
= 1.7 * 25 * 7 / 22 = 13.5 Ω
plz plz plz mark me as brainliest plzz...
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