A copper sheet with length 1.77 m, width 0.587 m, and thickness 1.27 mm is oriented so that its largest surface area is perpendicular to a magnetic field of strength 4.93 T. The sheet carries a current of 3.09 A across its length.
a) What is the magnitude of the force on this sheet?
b) What would the magnitude of the force on a thin 1.77-m-long copper wire be, if it carried the same current and was oriented perpendicularly to the same magnetic field?