【題組】(c)Now the outer surface is touched to a grounding wire.How do you answers to (a) and (b) change
3.A “pure” dipolep is situated at the origin, pointing in the z direction.【題組】(a)What is the force o
6.At the interface between one linear magnetic material and another magnetic field lines bend (see F
1.A thin insulating rod of length L lies along jc axis and carries a uniformly distributed charge +Q
2.A center hollow disk (inner radius a, outer radius b, as shown in Fig. 2) with uniform surface cha
3.A square loop of wire (side a) lies on a table, a distance s from a very long straight wire, which
【題組】(b)If someone now pulls the loop directly away from the wire, at speed v，what electromotive forc
【題組】(c)What if the loop is pulled to the right at speed v，instead of away? (Give the reasons for you
4.Two semicircular loops of radii a and b have a common center and their ends are joined by straight
20% 1. Let V be a vector space, and suppose that T and U are linear operators on V such that【題組】(a)U
【題組】(b)The null spaces of T and U are finite-dimensionai.Then the null space of TU is finite-dimensi