What is the magnitude of the magnetic field at point “P" which is located at a dis- tance of 0.50 m from the z axis? (in µT)

Assume that the magnitude of the magnetic field outside a sphere of radius R is B = Bo(R/r)2, where Bo is a constant. Determine the total energy stored in the magnetic field outside the sphere and evaluate your result for Bo = 5.00x 10-5 T and R = 6.00x 106 m, values appropriate for the Earth's magnetic field.

A rectangular loop of length L = 0.3 m and width W = 0.45 m carrying a current I = 2 A is exposed to a uniform magnetic field of magnitude B = 6 T, in the plane of the page and pointing to the right, as shown in the left-hand figure (Front View). BO Front View Le W B B What is the magnitude of the torque on the loop? (a) 7 = 1.522 N.m (b) 70.631 N.m O (c) T = 0.554 N.m Top View W At the instant shown, the wire loop makes an angle = 20° with the horizontal.

A oxygen ion with a -2 charge is traveling in the +z direction. It enters a region of uniform magnetic field that points to the -y direction. When the ion enters this region, which direction will it be deflected?