阿摩線上測驗
2. A conducting wire has a 1.0 mm diameter, a 2.0 m length, and a 50 mΩ resistance. What is the resistivity of the material?
(A) 1.96×10⁻⁸Ω⋅m
(B) 9.8×10⁻⁷Ω⋅m
(C) 1.0×10⁻⁶Ω⋅m
(D) 3.5×10⁻⁵Ω⋅m
(E) 6.8×10⁻⁴Ω⋅m
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統計： A(1), B(0), C(0), D(0), E(0) #3384036
統計： A(1), B(0), C(0), D(0), E(0) #3384036
