Current and drift velocity in a conductor are related by the equation:
Free electrons through the wire produce a current that can be expressed as:
, where N is the number of free electrons through the wire.
Comparing the two equations, we solve for t as follows:
The electron drift speed in a 3.00-mm diameter gold wire is 5.00×10-5 m/s. How long does it take 1 mole of electrons to flow through a cross section of the wire?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Microscopic View of Current concept. You can view video lessons to learn Microscopic View of Current. Or if you need more Microscopic View of Current practice, you can also practice Microscopic View of Current practice problems.