Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Current, Resistance and Electricity Drift of Electrons and the Origin of Resistivity
The drift velocity of electrons in a metal wire due to an electric current is ‘v’. If the current of two times higher magnitude flows through another metal wire of the same material, length, and cross-sectional area, then the drift velocity of the electrons will be-
1
zero
2
v/2
3
2v
4
More than one of the above.
5
None of the above