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

question 62

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

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