A Wire (Length = 2

Multiple Choice

A wire (length = 2.0 m, diameter = 1.0 mm) has a resistance of 0.45 Ω. What is the resistivity of the material used to make the wire?

A) 5.6 × 10⁻⁷ Ω ⋅ m
B) 1.2 × 10⁻⁷ Ω ⋅ m
C) 1.8 × 10⁻⁷ ⋅ m
D) 2.3 × 10⁻⁷ ⋅ m
E) 7.1 × 10⁻⁷ ⋅ m