A Nichrome wire has a radius of 0.50 mm and a resistivity of 1.5 *10 ^- ⁶ $\Omega$m. If the wire carries a current of 1.0 A, what is the potential difference per unit length along this wire? A) 1.9 V/m B) 0.95 V/m C) 1.6 V/m D) 0.003 V/m

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Quizplus · Accepted Answer

The potential difference per unit length is given by:V/L = (ρI)/Awhere:ρ is the resistivity of the wireI is the current flowing through the wireA is the cross-sectional area of the wireSubstituting the given values into the equation, we get:V/L = [(1.5 × 10^-6 Ω·m)(1.0 A)]/π(0.50 × 10^-3 m)^2V/L = 1.9 V/mTherefore, the potential difference per unit length along the wire is 1.9 V/m.

A Nichrome Wire Has a Radius of 0 Ω\OmegaΩ M If the Wire Carries a Current of 1

A Nichrome Wire Has a Radius of 0 $\Omega$ M If the Wire Carries a Current of 1