Question

can you please solve this no.4 i am not getting the answer

Answer 1

l = 60 cm = 0.6m

A = 1 mm² = 0.001 m * 0.001 m = 0.000001 m² = 10⁻⁶ m²

resistivity = 2.6 * 10⁻⁸ Ωm

Resistance = resistivity * l / A

= 2.6 * 10⁻⁸ * 0.6 / 10⁻⁶

= 2.6 * 6 * 10⁻⁸⁺⁶⁻¹ = 15.6 * 10⁻³ = 1.56 * 10⁻² Ω

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Answer 2

60 cm = 0.6m

A = 1 mm² = 0.001 m * 0.001 m = 0.000001 m² = 10⁻⁶ m²

resistivity = 2.6 * 10⁻⁸ Ωm

Resistance = resistivity * l / A

= 2.6 * 10⁻⁸ * 0.6 / 10⁻⁶

= 2.6 * 6 * 10⁻⁸⁺⁶⁻¹ = 15.6 * 10⁻³ = 1.56 * 10⁻² Ω

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