A metallic conductor has a resistivity of 18 *10 ^- ⁶ $\Omega$m. What is the resistance of a piece that is 15 m long and has a uniform cross sectional area of 6.0 *10 ^- ⁶ m²? A) 0.056 $\Omega$ B) 45 $\Omega$ C) 90 $\Omega$ D) 160 $\Omega$

Question

Quizplus · Accepted Answer

The resistance R of a conductor is given by the formula R = ρL/A, where ρ is the resistivity, L is the length, and A is the cross-sectional area. Substituting the given values: R = (18 x 10^-6 Ω·m)(15 m) / (6.0 x 10^-6 m^2) = 45 Ω.

A Metallic Conductor Has a Resistivity of 18 *10 - Ω\OmegaΩ

A Metallic Conductor Has a Resistivity of 18 *10 ^- $\Omega$