Multiple Choice
A 4.0 m length of gold wire is connected to a 1.5 V battery,and a current of 4.0 mA flows through it.What is the diameter of the wire? (The resistivity of gold is 2.44 × 10-8 Ω·m. )
A) 17 μm
B) 8.5 μm
C) 48 μm
D) 9.0 μm
Correct Answer:
Verified
Correct Answer:
Verified
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