A silver wire 2.6 mm in diameter transfers a charge of 420 C in 80 min. Silver contains $5.8 \times 10^{28}$ free electrons per cubic meter. (a) What is the current in the wire? (b) What is the magnitude of the drift velocity of the electrons in the wire?
Added by Blanca H.
Step 1
The charge Q is given as 420 C and the time t is given as 80 min, which is equivalent to 4800 seconds. Show more…
Show all steps
Your feedback will help us improve your experience
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Current, Resistance, and Electromotive Force
Current
A silver wire 2.6 $\mathrm{mm}$ in diameter transfers a charge of 420 $\mathrm{C}$ in 80 $\mathrm{mm}$ . Silver contains $5.8 \times 10^{23}$ free electrons per cubic meter. (a) What is the current in the wire? (b) What is the magnitude of the drift velocity of the electrons in the wire?
An electrical conductor designed to carry large currents has a circular cross section 2.50 mm in diameter and is 14.0 m long. The resistance between its ends is 0.104$\Omega$. (a) What is the resistivity of the material? (b) If the electric-field magnitude in the conductor is 1.28 V/m, what is the total current? (c) If the material has $8.5 \times 10{^2}{^8}$ free electrons per cubic meter, find the average drift speed under the conditions of part (b).
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD