Force between 2 parallel, charged, conducting sheets.

AI Thread Summary
The discussion revolves around calculating the force between two parallel, charged conducting sheets with charges Q1 and Q2. The user has established four equations related to the distribution of charges on the inner and outer surfaces of the plates but is unsure how to derive the electric field from this information. There is a sense of frustration as the user perceives the problem as straightforward yet feels stuck at the initial steps. Clarification on how to proceed with finding the electric field and ultimately the force is sought. The conversation highlights the challenges in applying theoretical concepts to practical problems in electrostatics.
khfrekek1992
Messages
30
Reaction score
0

Homework Statement


Two square parallel sheets with area>>distance between them have total charges of Q1 and Q2 on them. What is the force between them?


Homework Equations


Q1in+Q2in=0
Q1in+Q1out=Q1
Q2in+Q2out=Q2
Q1out=Q2out

The Attempt at a Solution


I set up 4 equations for the charges on the inner and outer sides of each plate (shown above)

Now I have no idea how to find the electric field from here. any help?
 
Physics news on Phys.org
Or am I doing this wrong?
 
This seems like such an easy problem but I have no idea where to start..
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging 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

Induction confusion for induced charge inside a metal conductor
Replies
23
Views
900
I Thought I Understood Gauss' Law (Sheets)
Replies
26
Views
2K
Sheet of charge - theory
Replies
1
Views
888
Gauss' Law question about a conducting rod
Replies
3
Views
2K
Charge on inner/outer surfaces of two large parallel conducting plates
Replies
11
Views
2K
Charge conservation for 3 parallel charged plates
Replies
19
Views
1K
Gauss' Law for a conducting / non-conducting sheet
Replies
5
Views
1K
Charge upon a parallel plate capacitor
Replies
18
Views
3K
Electric field between conducting and non-conducting sheets
Replies
9
Views
4K
How to find distance between 2 charges, with no force given?
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top