A circular flat coil that has N turns, encloses an area A, and carries a current i, has its central axis parallel to a uniform magnetic field B in which it is immersed. The net force on the coil is

-Zero

-NiAB

-NiB

-NiA

-iBA

Is the answer zero because the coil is placed parallel to the magnetic field?

To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field.it is in the opposite direction from that of the original external field.it has a direction determined entirely by the charge on its surface.it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?