Recent content by ll1111

Homework Statement A circular loop carries a current I. It is placed in a constant magnetic field in such a way that the field lines are perpendicular to the plane of the circle. What is the force on the loop? Does the magnetic field have any effect on the loop described? Homework...

edit - nevermind i think i misread the question.

A positive point charge of magnitude 1.6 µC is at the center of an uncharged spherical conducting shell of inner radius 65 cm and outer radius 110 cm. (a) Find the charge densities on the inner and outer surfaces of the shell. inner -.301358 µC/m2 outer .10522 µC/m2 Find the total...

what about the charge on the surface of the outer shell? is that positive to cancel the negative of the... inner shell? I'm sorry to be a pain.

i'm sorry.. i'll reiterate, i really don't understand physics very much, even though i honestly do try. i took physics 1 in high school my junior year and somehow passed the AP test. I'm now in college physics 2, we just started electricity a week ago. i'll admit that i don't understand the...

i am doing this problem now. i am just learning gauss's law and am very confused. i did end up getting the problem right, but i do not understand how you know whether or not it will be positive or negative. can someone help?

i want to get into computers but i want to major in math some schools I'm interested in offer things like computational math for example, a school i might attend offers a few math majors pure math applied math math-computer science and math-scientific computation the latter...