If a Metallic Wire of Cross-Sectional Area 3

question 69

Multiple Choice

If a metallic wire of cross-sectional area 3.0 *10 ^{- 6} m² carries a current of 9.1 A and has a mobile charge density of 4.24 * 10²⁸ carriers/m³, what is the average drift velocity of the mobile charge carriers? (charge value = 1.6 *10 ^{- 19} C)

• A) 3.4 * 10³ m/s
• B) 1.7 * 10³ m/s
• C) 4.5*10 ^{- 4} m/s
• D) 1.5 *10 ^{- 4} m/s

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