Recent content by amb0027

Homework Statement Two charged objects Q1 = +4Q and Q2 = -Q are located on the x-axis. Q1 is at the origin and Q2 is at the x = +S m position. You also have a test charge +qo Homework Equations F = kQq/d2 The Attempt at a Solution So you find that qo is past Q2 on the x-axis...

I don't understand how to approach the problem youre asking either.. I need someone to explain it

Homework Statement You have a solid, non-conducting cylinder of radius a, length L, and a total charge of Q. Concentric with this is an uncharged conducting cylindrical shell of inner radius b and outer radius c. Find the magnitude of the electric field for values of r where r < a...

Sorry, I've figured it out. I just thought it was a more simple problem than this... For future reference, this is how you solve it. It's a continuous Distribution of charge so 1) Divide the charge into segments dQ for which you already know the field 2) Find the field of each dQ 3) Find...

Homework Statement You have a semicircle of radius R and charge Q. We also have available a test charge +qo. Find the Magnitude and direction of the electric field at the origin. Homework Equations Electric Field: F = k (Q * qo)/(R^2) E = F/qo = kQ/R^2 The Attempt at a Solution...

Head of Physics Department at Auburn says its wrong haha.. but didn't give me the right answer, just marked through it.. he did give me one point, out of 10..

I don't see the link "Magnetic field from a long straight wire" And i know what ampere's law is i just thought it broke down in this problem to what I stated. Trust me I've read plenty I just don't understand how to do this problem...

Studying for a test, and can't figure out what the real answer is for this problem. Homework Statement There is a long vertical straight wire carrying a current Io upward. Use ampere's law to determine an expression for the magnetic field at point "P" a distance x from the long straight...

so M is 10^6? ooh yea.. thanks!

Thanks for your replies. But it says MA/m^2, not mA/m^2. and the answer I've shared here does not work.. any other suggestions?

Homework Statement The current in a 1.5 mm X 1.5 mm square aluminum wire is 1.10 A. What are (a) the current density and (b) the electron drift speed? Homework Equations current density: J = I/A drift speed Vd = J/ne The Attempt at a Solution It's asking for an answer in MA/m^2...