Induced current in a metal ring

[haruspex]

That's what try to mean,

What is?
Are you still insisting that the induction is a sinusoidal function of time? Or do you now accept that the graph of it against time while crossing each wire is a half ellipse?

 

[Diegor]

Why isn't it constant when the speed is constant and the rate of change in area is constant?

The problem doesent specify, but based on the answers section were supposed to find the average and max values for each of the positions. However, positions 1,3 and 5 all have emf values of 0 (why is this?), so in reality only for positions 2 and 4.

Like i said the entire problem statement is in the first post, however the creators of the physics textbook were quite unclear in the way they formulated the problem. I am sure there is still a lot to learn through working with this though.

Did you try to get the increase of area (proportional to increase of flux) as a function of time? If you didn't see the picture maybe it will help you.