Electric Field Near Flat Metal Plate: Factors & Components

AI Thread Summary
The discussion focuses on understanding the electric field components near a flat metal plate. It emphasizes that the electric field is always orthogonal to the surface, indicating that there is no parallel component. The absence of a parallel component implies no current flow in that direction. Factors affecting the electric field include the plate's smoothness and the nature of the charge distribution. Overall, the key takeaway is that the electric field near a flat metal plate consists solely of a normal component.
bon
Messages
547
Reaction score
0

Homework Statement



Explain the factors that determine the parallel and normal components of the elctric field near to the surface of a flat metal plate


Homework Equations





The Attempt at a Solution



No idea what this question wants..? Is it something to do with the smoothness of the plate?
 
Physics news on Phys.org
anyone>?
 
static electric field is always orthogonal to the surface (any surface e.g. a sphere), no parallel component.
simple explanation: if there was a parallel component, there would have been current in that direction. but there is no current, thus no parallel component.
 
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...
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...

Similar threads

Back
Top