In the figure, two tiny conducting balls of identical mass m and identical charge q hang from nonconducting threads of length L. Assume that q is so small that tanq can be replaced by its approximate equal, sinq.
First find an expression for x in terms of L, q, m, k and g.
Then, given L...
Hi, I'm having trouble applying Laplace's equation solution in cylindrical coordinates to the problem of the grounded conducting cylinder of radius a in a uniform external field. The cylinder axis is the z axis, and the external electric field is E0 in the x direction. I need to find the...
Two 0.68 m long conducting rods are rotating at the same speed in opposite directions, and both are perpendicular to a 4.7 T magnetic field. As the drawing shows, the ends of these rods come to within 1.0mm of each other as they rotate. More-over, the fixed ends about which the rods are rotating...
A conducting sphere that carries a total charge of 6 micro C is placed at the center of a conducting spherical shell that also carries a total charge of 6 micro C .
(a) Determine the charge on the inner surface of the shell.
(b) Determine the total charge on the outer surface of the shell...
"a conducting slab has infinite extent in the x and y directions and thickness L in the z direction. The slab is centered at z=0 and carries a uniform current density J=Ji where i, j, and k are unit vectors in the x, y, and z directiosn."
-Find the magnetic field B at all points.
-A square...
Howdie all,
I'm soo glad I found this forum, people are genuinely working together instead of ignoring their fellow physics brethren =)
A pair of square parallel conducting plates, having sides of length .05 meter, are .01 meter apart and are connected to a 200 volt power supply. An electron...
In one of our exercises, there is a conducting sphere (S2) with a cavity inside (S1). A point charge is placed inside the cavity. We were told to try and find the electric field outside by following a set of steps.
1. Imagine that S2 is grounded. In that case, the charge on the cavity wall...
A square conducting loop with sides a lies on a table a distance s from a very long straight wire carryinga current I.
a) Derive an expression for the magnetic flux through the loop.
b) Derive an expression for the EMF induced in the loop if it is pulled away in a direction orthogonal to...
consider two conducting loops with fixed geometries and at fixed positions. Let I1 and I2 be the currents flowing in the loops 1 and 2.
how does Faraday's Law allow the currents I1 and I2 to affect each other?
farday's law says that changing the flux between loops 1 will induce an emf in...
Does anybody know off of the top of their head:
1)The most conducting metal
2)A conducting metal with the roughest surface (looking for surface area)
Paden Roder
Yo, d00dz, I can't remember how to find the electric field inside a conducting wire (actually a coaxial cable)
Here's the exact text of the problem:
A coaxial cable (inner radius a, outer radius b) is used as a transmission line between a battery E and a resistor R, as shown in Fig 19...