Suppose you have a magnetic field with a strength of 25 \mu T directed along the x - axis. If a 32 cm \times 50 cm wire loop is placed at a 60-degree angle to the x -axis before being shifted to a 30-degree angle to the x - axis, what is the difference in flux within the loop? Note: 1 Wb = T-m2 Express your answer in webers.

Is B constant in magnitude for points that lie on a magnetic field line?

A strip of copper is placed in a uniform magnetic field of magnitude 2.5 T. The Hall electric field is measured to be 1.5103V/m (a) What is the drift speed of the conduction electrons? (b) Assuming that n =8.01028 elections per cubic meter and that the cross-sectional area of the strip is 5.0106m2 , calculate the current in the ship, (c) What is the Hall coefficient 1/nq?

The magnetic flux through the loop shown in the accompanying figure varies with time according to m=2.00e3tsin(120t) , where m is in milliwebers. What are the direction and magnitude of the current through the 5.00 resistor at (a) t= 0; (b) t=2.17102 s and (c)t=3.00 s?