Resistors and Ohm's Law Video Lessons

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Problem: Which of the following materials is the poorest electrical conductor?A. NichromeB. CopperC. Aluminum D. Brass 

FREE Expert Solution

It's hard to find a table of conductivity of metals in a physics textbook, but many list values of resistivity, ρ, for at least a few metals. Remember resistivity is the inverse of conductivity (a more resistive material will be less conductive.)

Copper has one of the lowest resistivities (1.47×10−8 Ω·m)—it's a very good conductor. B is incorrect.

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Problem Details

Which of the following materials is the poorest electrical conductor?

A. Nichrome

B. Copper

C. Aluminum 

D. Brass 

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