Recent content by lovinuz

Homework Statement Two parallel conducting rails are separated by 50 cm. These are connected together by a fixed wire and by a third rail, constrained to lie transverse to the two parallel rails, which can slide back and forth. There is a 100 ohm resistance in the fixed wire. All three rails...

Homework Statement There is a constant electric field E = E0sin(kz+wt+pi/3) k(direction vector). What is the value of the line integral(P) B.dl, where P is a circular path, centered on the origin, lying in the xy-plane, having radius r? Homework Equations integral E.dl = -dI/dt The...

i might add that we can use cylindrical coordinates, expressing this as K(r,phi) where r=sqrt(x square + y square) and phi = tan inverse (y/x). this is for part (a).

Homework Statement There is a disc with radius R which has a uniformly-distributed total charge Q, rotating with a constant angular velocity w. (a) in a coordinate system arranged so that the disc lies in the xy plane with its center at the origin, and so that the angular momentum point in...