Question on induced emf in a loop

[Giuseppe]

Hey, I'm in a high school AP class and am stuck! Can anyone help me with this problem concerning induced emf? I would surely appreciate it.

There is a loop of wire, shaped like a square. Each side is 20 cm long.
There is a magnetic field directed into the page.

What would be the way of finding out what the induced emf in the loop. The back of the book says that the answer is 1.40 x 10^-4 Volts.

[dextercioby]

That magnetic field must produce a varying magnetic flux.So how about telling the whole story...?

Daniel.

[Giuseppe]

Its ok, I found out how to do it. I forgot to mention that the Magnetic field has an initial magnitude of .750 T, and is decreasing at a rate of -.0350 T/S (there's your reason for changing magnetic flux) :approve:

[dextercioby]

Please,next time,write the text of the problem.That way,we'd avoid confusions or misunderstandings...

Daniel.

[Giuseppe]

no problem.