Question on induced emf in a loop

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Homework Help Overview

The discussion revolves around a problem related to induced electromotive force (emf) in a square loop of wire subjected to a magnetic field. The original poster describes the setup, including the dimensions of the loop and the characteristics of the magnetic field.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the nature of the magnetic field and its effect on magnetic flux, with one participant questioning the completeness of the problem description. Another participant clarifies the initial conditions of the magnetic field and its rate of change.

Discussion Status

The discussion is ongoing, with participants exploring the implications of the varying magnetic field on the induced emf. Some guidance has been provided regarding the importance of the magnetic field's characteristics, but no consensus has been reached on the approach to the problem.

Contextual Notes

There is a noted concern about the clarity of the problem statement, with suggestions that more complete information could prevent misunderstandings.

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

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

Daniel.
 
no problem.
 

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