If a Metallic Wire of Cross Sectional Area 3

question 2

Multiple Choice

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