Current across wire

Electricity and Magnetism Level 1

When the potential difference across a copper wire increases, the drift velocity of charge carriers $\text{\_\_\_\_\_\_\_\_\_\_.}$

increases remains the same gets reduced to zero decreases

2 solutions

Yash Maurya
Jun 10, 2014

I is equal to A n e (Vd) where Vd is drift vilocity..so when V increases I will increase which in turn increases Drift velocity Vd

Deepak Gowda
Jun 8, 2014

Drift velocity = carrier mobility * electric field

Electric field = potential difference / length of conductor

Thus if potential difference increase, drift velocity increases