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    University Physics
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    Exam 24: Current, Resistance, and Electromotive Force
  5. Question
    What Length of a Certain Metal Wire of Diameter 0
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What Length of a Certain Metal Wire of Diameter 0

Question 3

Question 3

Multiple Choice

What length of a certain metal wire of diameter 0.15 mm is needed for the wire to have a resistance of 15 Ω? The resistivity of this metal is 1.68 × 10-8 Ω ∙ m.


A) 16 mm
B) 16 cm
C) 1.6 m
D) 16 m
E) 160 m

Correct Answer:

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