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llenkic
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Homework Statement
I did a lab experiment with Helmholtz coil, where we had to build a probe and connect it to an oscilloscope to measure the induced voltage, from the magnetic field produced by the Helmholtz coil. The Helmholtz coils were connected to an AC power source.
Now I have to relate the induced voltage, to the magnetic field strength inside the coils.
Homework Equations
[tex]\epsilon[/tex] = -[tex]\frac{d\Phi_{B}}{dt}[/tex]
The Attempt at a Solution
I know that by Faraday's Law, that a changing magnetic flux will induce an emf. And since the coils were connected to an alternating current, the current is probably varying sinusoidally.
If this were a situation where the area that was changing with respect to time, I would do this
[tex]\epsilon[/tex] = -B[tex]\frac{dA}{dt}[/tex]
since the magnetic flux, [tex]\Phi[/tex]_b = BA cos[tex]\varphi[/tex].
I feel I should do something like that, but have current varying with time, except I am really having trouble relating the magnetic flux to current...
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