Question
Physics Question on Drift Velocity
A copper wire of 3 mm2 cross sectional area carries a current of 5 ampere. The magnitude of the drift velocity for the electrons in the wire, (Assume copper to be monovalent, Mcu 63.5 kg/k mol and density of copper = 8920 kg/m3)
A
0.24 m/s
B
0.12 m/s
C
2.4 m/s
D
0.06 m/s
Answer
0.12 m/s
Explanation
Solution
The correct option is (B) : 0.12 m/s.