A square loop with resistance R and side length 1 moves at constant velocity v and enters a region with auniform magnetic field B directed out of the page. An external force ensures that the loop moves at thesame velocity v at all times as the loop enters and exits the region with the magnetic field.11BFind the magnitude and direction (clockwise or counterclockwise) of the induced current in the loop, as wellas the total magnetic force on the loop, during the following time intervals:(a)After the front end of the loop has entered the magnetic field, but before the back end hasentered the magnetic field./(b)(c)) After the front end of the loop has left the magnetic field, but before the back end has leftthe magnetic field.4 After the loop is completely engulfed by the magnetic field, but before it begins to leave themagnetic field.

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