Find the mean time between collisions in a wire

Click For Summary
SUMMARY

The discussion focuses on calculating the mean time between collisions of electrons in a wire using the equations v = (qT/m)*E, ρ = E/J, and J = nqv. The user struggles with the variable q, which represents the charge of an electron (1.6 x 10^-19 C), and its role in manipulating the equations. The correct interpretation of ρ as the Greek letter rho is also clarified, emphasizing the importance of accurate notation in physics equations.

PREREQUISITES
  • Understanding of basic electromagnetism concepts
  • Familiarity with the equations of motion for charged particles
  • Knowledge of electron charge and its significance in calculations
  • Ability to manipulate algebraic equations in physics
NEXT STEPS
  • Research the role of electron charge in electrical conductivity
  • Learn about the Drude model of electrical conduction
  • Explore the concept of mean free path in particle physics
  • Study the relationship between electric field strength and current density
USEFUL FOR

Physics students, electrical engineers, and anyone interested in understanding electron behavior in conductive materials.

smashyash
Messages
28
Reaction score
0

Homework Statement



I am to find the mean time between collisions of electrons in a wire and am having a difficult time manipulating equations with known variables. I am given values for E, J, n and rowe.

Homework Equations



v = (qT/m)*E
rowe = E/J
J = nqv

The Attempt at a Solution



I have tried every possible combination of ways to manipulate this equation but I guess my problem is q. I don't think I know the value or can assume it and I can't cancel it out anywhere!
 
Physics news on Phys.org
isn't it just the charge of the electron (1.6 x 10^-19 c)

the greek letter is rho not rowe
 

Similar threads

Coefficient of Restitution for a Hypothetical Collision where masses are not equal after the collision compared to before the collision
  • · Replies 6 ·
Replies
6
Views
1K
How Do You Solve for Final Velocities in Elastic Collisions?
  • · Replies 20 ·
Replies
20
Views
2K
Unsure of how to approach this type of problem—Current densities in wires
  • · Replies 3 ·
Replies
3
Views
1K
Solving Current & Power in 4 & 3 Wire Circuits
  • · Replies 9 ·
Replies
9
Views
2K
Finding the mean net force during a collision
  • · Replies 3 ·
Replies
3
Views
2K
Thin wire alternating exerts force on a nearby charge
  • · Replies 5 ·
Replies
5
Views
2K
Finding the voltage drop along a tapered wire
  • · Replies 30 ·
2
Replies
30
Views
2K
Kinetic energy and momentum in an elastic collision
  • · Replies 22 ·
Replies
22
Views
4K
Potential Energy - 2D inelastic collision - ballistic pendulum
  • · Replies 10 ·
Replies
10
Views
3K
Maximizing Transferred Energy between n bodies in linear collisions
  • · Replies 3 ·
Replies
3
Views
2K