A 020-M-Long Metal Rod Has a Radius of 3

Multiple Choice

A 0.20-m-long metal rod has a radius of 3.0 cm and a resistance of 2.5 × 10−⁵ Ω.What is the resistivity of the metal?

A) 1.1E-8 Ω⋅m
B) 3.5E-7 Ω⋅m
C) 1.0E-8 Ω⋅m
D) 1.8E-8 Ω⋅m
E) 1.2E-7 Ω⋅m