Electric Field Sketch: Ex vs. x & Fx vs. x Homework

cerium
Messages
15
Reaction score
0

Homework Statement


Sketch 2 diagrams 1 showing Ex against x and 1 showing Fx against x


Homework Equations





The Attempt at a Solution


I have drawn a graph showing potential difference against x and have been asked to produce a sketch showing Ex and Fx relating to this graph but I am unsure how to do this, will my sketch of Ex be going from positive to negative if my pd went from neagative to positive
Thanks in advance cerium
 
Physics news on Phys.org
What is the equation that determines the electric field from its potential? What does that equation reduce to when the potential depends only on x?
 
Equation relating electric field and potential is Ex= -dV(r)
dx
if it just relies on x then is it just an inverse sketch of the pd graph
 
Thread 'Need help understanding this figure on energy levels'

Thread 'Need help understanding this figure on energy levels'

This figure is from "Introduction to Quantum Mechanics" by Griffiths (3rd edition). It is available to download. It is from page 142. I am hoping the usual people on this site will give me a hand understanding what is going on in the figure. After the equation (4.50) it says "It is customary to introduce the principal quantum number, ##n##, which simply orders the allowed energies, starting with 1 for the ground state. (see the figure)" I still don't understand the figure :( Here is...
View full post »
Thread 'Understanding how to "tack on" the time wiggle factor'

Thread 'Understanding how to "tack on" the time wiggle factor'

The last problem I posted on QM made it into advanced homework help, that is why I am putting it here. I am sorry for any hassle imposed on the moderators by myself. Part (a) is quite easy. We get $$\sigma_1 = 2\lambda, \mathbf{v}_1 = \begin{pmatrix} 0 \\ 0 \\ 1 \end{pmatrix} \sigma_2 = \lambda, \mathbf{v}_2 = \begin{pmatrix} 1/\sqrt{2} \\ 1/\sqrt{2} \\ 0 \end{pmatrix} \sigma_3 = -\lambda, \mathbf{v}_3 = \begin{pmatrix} 1/\sqrt{2} \\ -1/\sqrt{2} \\ 0 \end{pmatrix} $$ There are two ways...
View full post »

Similar threads

Electric Potential V(x,y,z): Sketch Electric Field Lines
Replies
4
Views
2K
Plot Heat Capacity vs Temperature for a 2 state system microcananonical ensemble
Replies
4
Views
2K
Lorentz boost, electric field along x-axis, maths confusion?
Replies
1
Views
3K
How Does Magnet Position Affect EMF in a Coiled Wire System?
Replies
35
Views
4K
Write down the equations for the real electric and magnetic fields for a
Replies
1
Views
3K
Where Does a Particle Reflect in a One-Dimensional Potential Field?
Replies
2
Views
2K
(Quantum Mechanics) Gaussian Distributions, Expected Values, and Sketches
Replies
2
Views
6K
Calculate the electric field due to a line of charge of finite length
Replies
6
Views
4K
Sketching the electric field of a bar electret
Replies
21
Views
6K
Classical Mechanics Q: trajectory of q in B and E fields
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top