CUET and UG exam CUET UG 2025 Mock Test Series Physics Current, Resistance and Electricity Drift of Electrons and the Origin of Resistivity
A certain aluminium rod has a cross-sectional area of 4 × 10-6 m2 and a current of 5 A is flowing through it. If the density of the aluminium is 2.7 × 103 kg/m3 and atomic weight is 27 u, what is the drift velocity of the electron in the aluminium rod? (Assume that each atom of aluminium provides one electron).
1
2.65 × 10-4 m/s
2
0.91 × 10-4 m/s
3
1.29 × 10-4 m/s
4
3.23 × 10-4 m/s