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    University Physics with Modern Physics Study Set 1
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    Exam 25: Current,resistance,and Electromotive Force
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    A Cylindrical Wire Has a Resistance R and Resistivity ρ
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A Cylindrical Wire Has a Resistance R and Resistivity ρ

Question 31

Question 31

Multiple Choice

A cylindrical wire has a resistance R and resistivity ρ.If its length and diameter are BOTH cut in half
-what will be its resistivity?


A) 4ρ
B) 2ρ
C) ρ
D) ρ/2
E) ρ/4

Correct Answer:

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