A Rod Is 4

question 188

Multiple Choice

A rod is 4.0 m long and has a square cross-section that is 1.5 cm on each side.An ohmmeter measures 0.040 Ω across its ends.What is the resistivity of the material from which this rod is made?

• A)0.023 Ω ∙ m
• B)0.015 Ω ∙ m
• C)1.5 × 10^-4 Ω ∙ m
• D)2.3 × 10^-6 Ω ∙ m

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A type of good that is excludable but non-rivalrous, meaning people can be prevented from using it, but one person's use does not reduce its availability to others.

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