Teaching HTET PGT Level 3 - 2024 Mock Test Physics Current, Resistance and Electricity Drift of Electrons and the Origin of Resistivity
A potential difference V is applied across a copper wire of diameter d and length l. If this wire is replaced with another copper wire of diameter 2d and length l, then the drift velocity will:
1
Increase
2
Decrease
3
Remain same
4
Can't predict