What is principle of solution behind this induction problem (problem 29)? The problem can be find in here (problem 29).
Problem is: 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 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 CCV represent counter clockwise. (look at the picture in here( problem 29))
29) In which of the above figures will the light bulb be glowing?
(a) I, III, IV (b) I, IV (c) I, II, IV (d) IV (e) None of these.