Resistors and Ohm's Law Video Lessons

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Problem: If you stretch a copper wire so that it becomes thinner and longer, the resistance between its ends becomes a. larger b. smaller c. The resistance remains unchanged

FREE Expert Solution

Resistance:

R=ρlA where ρ is the resistivity, l is the length, and A is the cross-sectional area.

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Problem Details

If you stretch a copper wire so that it becomes thinner and longer, the resistance between its ends becomes 

a. larger 

b. smaller 

c. The resistance remains unchanged

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