Resistance R of a wire depends on its length L, area A, and resistivit…

Question

Resistance R of a wire depends on its length L, area A, and resistivity ρ as:

Accepted Answer

B. R = ρ L / A

1. R = ρ L / A.
2. Longer wire → more R. Thicker wire (larger A) → less R.
3. ρ is an intrinsic material property; units Ω m.
_Source: syllabus Physics Ch 3 §3.5 Resistance of Conductors_

Answer

R = ρ L A

Answer

R = ρ A / L

Answer

R = ρ / (L A)

Resistance R of a wire depends on its length L, area A, and resistivity ρ as:

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