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Old Apr 28th 2010, 07:34 AM   #1
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Smile Finding magnitude of induced emf through Faraday's Law?

I am not sure how to approach this problem:

A square copper loop, with sides of length 10.0 , is located in a region of changing magnetic field. The direction of the magnetic field makes an angle of 37.0 with the plane of the loop. The time-changing (increasing) field has the following time dependence: B(t)=0.400T+(1.0010^−3T/s)t.

Find the magnitude of the induced emf in the copper loop for times .

Help please?
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Old Apr 28th 2010, 04:50 PM   #2
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the magnetic flux is
F = S B(t) cos(90-a) = S B(t) sin(a).
Where
l=10 cm
S = l^2
a = 37.
Induced emf is
E = - dF/dt.
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