For each situation below determine the direction of the inducedcurrent in the loop (if there is one).

(a) A square loop is moving at a constant velocity to the rightthrough a uniform magnetic fieldthat is directed into the page andwhich extends out of the picture to the left and right. In whichdirection is the induced current in the loop?

[ ] clockwise [ ] counter-clockwise [ ] there is no inducedcurrent Justify your answer (with words, pictures, or both):

(b) A circular loop is at rest in a magnetic field directed intothe page. The magnetic field is increasing in magnitude. In whichdirection is the induced current in the loop?

[ ] clockwise [ ] counter-clockwise [ ] there is no inducedcurrent Justify your answer (with words, pictures, or both):

(c) A piece of wire is wrapped into a loop and placed in auniform magnetic field that is directed into the page. You thenpull on the ends of the wire so the area of the loop is decreasing.In which direction is the induced current in the loop?

[ ] clockwise [ ] counter-clockwise [ ] there is no inducedcurrent Justify your answer (with words, pictures, or both):

(d) A bar magnet is held near the center of a wire loop. Themagnet is then pulled away from the loop. The north pole is alwaysclosest to the loop. In which direction is the induced current inthe loop? (The direction as seen by the north pole of themagnet.)

[ ] clockwise [ ] counter-clockwise [ ] there is no inducedcurrent Justify your answer (with words, pictures, or both):