The magnetic field lines inside linear media “reflect” at the interface. Assuming there is no free current flowing at the interface and the permeability of the two media are u1 and u2 respectively, find tan theta2 in terms of u1, u2 and theta 1.

A long straight wire is fixed in space and has current I. Draw the wire vertically with the current flowing upward. A square wire loop with side length s and resistance R is in the plane of the page and has its closest side a distance x away from the wire. Find the magnetic flux through the square HINT: The B-field depends on distance from the wire so you will have to integrate. The loop is pushed with velocity v toward the Find the rate of change of magnetic flux. HINT: Don't forget the chain rule. If f(x(t)) is a function of x and x is a function of t, then df/dt = (df/dx)(dx/dt) Find the current induced in the square Which direction is the current flowing? Explain with Lenz's Law Find the net magnetic force on the

A charge of the magnitude of 50 µC and of the a mass 42 ug, enters perpendicularly in a uniform magnetic field. Then it leaves the magnetic field, in a direction perpendicular to the original direction, as shown in the figure. If the charge is the magnetic field for a 200 ms time interval, calculate the magnetic field (in T). B

Consider the following:A uniform magnetic field B= -0.033TK is present in a region of space, as shown in the figure. There is also a uniform electric field in this region of space. A protn with a constant velocity v = 74 m/s T passes through the region without deflection. What is the magnitude of the electric field in the region?