How much current will be flowing through a 40.0 m length of copper wire with radius 4.0 mm if it is connected to a source supplying 16.0 V? (The resistivity of copper is 1.68 × 10-8 Ω·m. )
A) 1200 A
B) 9.5 x 108 A
C) 68 nA
D) 710 A
Correct Answer:
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