A current flows through an aluminum wire.The aluminum wire has a length of 2.00 m,a diameter of 0.0300 cm,and a carrier density of 6.02 * 1028 electrons/m3.If the electron drift velocity is 1.84 * 10-4 m/s,what is the current density in the wire?
A) 1.93 * 106 A/m2
B) 1.18 * 106 A/m2
C) 1.36 * 106 A/m2
D) 1.53 * 106 A/m2
E) 1.77 * 106 A/m2
Correct Answer:
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