Magnetic Flux?

Question

A rectangular loop of wire is moving toward the bottom of the page with a speed of 0.025 m/s (see the drawing). The loop is leaving a region in which a 2.2 T magnetic field exists; the magnetic field outside this region is zero. During a time of 2.0 s, what is the magnitude of the change in the magnetic flux?


This is the drawing
http://www.webassign.net/CJ/22_16.gif

Answer 1

Magnetic flux is the product of the average magnetic field times the perpendicular area that it penetrates.
The average field is 2.2 x area of the loop in the field/total area of loop so the flux is 2.2 x area of the loop in the field