The five separate figures below involve a cylindrical magnet and a tiny light bulb connected to the ends of a loop of copper wire. These figures are to be used in the following question. the plane of the wire loop is perpendicular to the reference axis. The states of motion of the magnet and of the loop of wire are indicated in the diagram. Speed will be represented by v and CCW represents counter clockwise.

In which of the figures will the light bulb be glowing?

1. I, III, IV
   
   
2. I, IV
   
   
3. I, II, IV
   
   
4. IV
   
   
5. None of these
   

A very long straight wire carries a large steady current i. Rectangular metal loops, in the same plane as the wire, move with velocity v in the directions shown. Which loop(s) will have an induced current?

1. only I and II
   
   
2. only I and III
   
   
3. only II and III
   
   
4. I, II, and III
   
   
5. none of the above
   

A neutral metal bar is moving at constant velocity v to the right through a region where there is a uniform magnetic field pointing out of the page. The magnetic field is produced by some large coils which are not shown on the diagram.

1. Answer 1
   
   
2. Answer 2
   
   
3. Answer 3
   
   
4. Answer 4
   
   
5. Answer 5
   

A variable power supply is connected to a coil and an ammeter, and the time dependence of the ammeter reading is shown. A nearby coil is connected to a voltmeter.

1. Answer 1
   
   
2. Answer 2
   
   
3. Answer 3
   
   
4. Answer 4
   
   
5. Answer 5