Determining drift velocity of electrons at specific temperature

AI Thread Summary
To determine the drift velocity of electrons in a gold conductor under an electric field of 0.01 V/m, the relationship between current density, electric field, and drift velocity must be established. The resistance can be calculated using the formula R = ρ(L/A), where ρ is resistivity, L is length, and A is cross-sectional area. The drift velocity can be derived from the equation J = nqvd, where J is current density, n is electron density, q is charge of an electron, and vd is drift velocity. At temperatures of 20.0 degrees C and 50 degrees C, the resistivity of gold changes, affecting the drift velocity. Understanding these relationships is crucial for solving the problem effectively.
mlbqd3
Messages
3
Reaction score
0

Homework Statement


A gold conductor with an electric field of 0.01 V/m applied, is 0.01 m long and 5.0E-5m in radius. Assuming one conduction electron per atom, what is the drift velocity of the electrons at a temperature of 20.0 degrees C? at 50 degrees C?


Homework Equations


I know that R=rho(L/A), but I have no idea where to go from here. If someone could give me an idea how to connect the length and area to drift velocity I would appreciate it.
 
Physics news on Phys.org
The Attempt at a SolutionI have not attempted to solve this problem because I do not know how to start.
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanged mass'

Thread 'A cylinder connected to a hanged mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Factors affecting drift velocity?
Replies
6
Views
12K
Exploring the Drift Speed of Electrons in Conductors
Replies
6
Views
2K
High Drift Velocities in Silicon vs Metals: Explained
Replies
1
Views
1K
Electron Drift Velocity in Semiconductors
Replies
1
Views
2K
Finding the drift speed of a conduction electrons
Replies
13
Views
3K
Rms velocity of electron in free space?
Replies
2
Views
5K
Finding the electron drift speed
Replies
2
Views
2K
Find drift velocity of the current carriers in the copper strip
Replies
19
Views
4K
How Long Does It Take an Electron to Travel Through a Copper Wire?
Replies
1
Views
2K
Calculating drift velocity of electrons in a conductor
Replies
1
Views
6K

Hot Threads

Recent Insights

Back
Top