- #1
NihalRi
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Homework Statement
In a group assignment we had to find out how many electrons were transferred to pieces of tape after we pealed them of a table.
The second part of the project asked us to imagine that one piece of tape was a distributed charge and that the other was still a point charge.
Homework Equations
F=kqq/r^2
F=mg
E= kq/(x(x^2+(L/2)^2)^(1/2))
The Attempt at a Solution
We imagined that these two tapes were represented by point charges located at the center of each tape for the first project.
our teacher said this method had a problem but I still can't see anything wrong, I would appreciate some help identifying the problem.
For the second part of the project I thought that we could use the electric field expression for distributed charge of a rod we derived in class to represent one of the tapes. The only problem is that the tape also has a noticeable width. For this project the only things we could use were expressions we had already derived for electric field of a :
a. Dipole
b. Set of a finite number of point charges
c. A uniformly charged rod
d. A uniformly charged ring
e. A uniformly charged disk
f. A solid sphere uniformly charged throughout its volume
g. A spherical shell with a uniformly charged surface
Would any of these be more suitable than the rod expression.
Thanks in advance for the help.