- #1
Feodalherren
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Homework Statement
Consider the loop in the figure below. What is the maximum induced emf in each of the following cases if A = 600 cm2, ω = 31.0 rad/s, and B = 0.490 T?
Rotating about x,y,z?
Homework Equations
Faraday's law
The Attempt at a Solution
This should be relatively easy since the B is constant but I can't seem to figure it out.
[itex]
ε=(.490)\frac{d}{dt} \int dA cos(ωt)
[/itex]
[itex]
ε=(.490)(.06)\frac{d}{dt} cos(ωt) [/itex]
[itex]
ε=-ω(.490)(.06) sin(ωt)
[/itex]
Now then, do I take the time derivative again and set it equal to zero to find max/min?
Oh yeah an by inspection I can tell that the change in flux is zero as it spins around the X axis and thus emf=0 in that case.
ps. what's the command fora a new row in itex?
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