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When a 10-M Length of Metal Wire Is Connected to A to A 1.5

Question 135

Multiple Choice

When a 1.0-m length of metal wire is connected to a 1.5−V1.5 - V battery,there is a current of 8.0 mA8.0 \mathrm {~mA} through it.What is the diameter of the wire? The resistivity of the metal is 2.24 × 10-8 Ω ∙ m.


A) 12 μm
B) 6.0 μm
C) 24 μm
D) 2.2 μm

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