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Physics Current Electricity Level: High School

If a metallic wire of cross sectional area 3.0 x 10-6 m2 carries a current of 6.0 A and has a mobile charge density of 4.24 x 1028 carriers/m3 , What is the average drift velocity of the mobile charge carriers ? (charge value = 1.6 x 10-19 C)

a. 3.4 x 103 m/s

b. 1.7 x 103 m/s

c. 1.5 x 10-4 m/s

d. 2.9 x 10-4 m/s