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The Resistivity of a 1

Question 20

Multiple Choice

The resistivity of a 1.0 m long wire is 1.72 × 10-8 Ωm and its cross sectional area is 2.0 × 10-6 m2. If the wire carries a current of 0.20 A, what is the voltage across the wire?


A) 17 mV
B) 0.90 mV
C) 1.7 mV
D) 10 mV
E) 90 mV

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