All Questions
7
questions
9
votes
4
answers
668
views
Distribution of point charges on a line of finite length
How will $N$ freely moving charges confined to a line with length $L$ be distributed? What are their equilibrium positions?
- 4,194
0
votes
2
answers
2k
views
Calculate force of electric charges "suspended" by strings [closed]
In a question:
Two small plastic balls hang from threads of negligible mass. Each
ball has a mass of 0.110g and a charge of magnitude q. The balls are
attracted to each other, and the ...
- 495
2
votes
1
answer
4k
views
Image dipole in front of a conducting grounded plane
In front of an indefinite conducting plane connected to ground and at a distance $d$ of it we locate an electric dipole with dipolar moment $\textbf{p}$ parallel to the plane. What electric field acts ...
- 162
2
votes
1
answer
2k
views
Potential due to a charged ring : Electric field discontinuity
I have just begun with my third year intermediate course in electrodynamics. A standard problem in electrostatics that one may repeatedly encounter is that of finding the potential due to a uniformly ...
- 380
1
vote
1
answer
200
views
Ampere's Law Confusion [closed]
I had this question recently in a test. Different methods are yielding different answers. Can someone point out the mistake?
We are given 4 infinite wires carrying current out of the plane as shown. ...
- 736
0
votes
1
answer
3k
views
Minimum separation problem
I am trying to solve this problem where two point charges are infinite distance apart(horizontally) but separated by some finite distance vertically. Both are positively charged and projected ...
- 1,813
-2
votes
1
answer
18k
views
Electric field due to nonconducting plastic sheets [closed]
Two very large, nonconducting plastic sheets, each 10.0 cm thick, carry uniform charge densities $\sigma_1, \sigma_2, \sigma_3$ and $\sigma_4$ on their surfaces (the four surfaces are in the following ...
- 11