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EMF induced in loop

  • Thread starter beetle2
  • Start date
111
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1. The problem statement, all variables and given/known data
C
alculate the emf (in volts) induced in a loop of wire if the magnetic flux in the loop increases from zero to 71.1 milliweber in 16.7 millisec.



2. Relevant equations

faradays Law

3. The attempt at a solution

The only law I know is faradays law which uses Area. Is there another formular that does not need it?
 
Faraday's Law is the only one that links the induced EMF to the change in Magnetic Flux, why would you want to use anything else?

[tex]\mathcal{E} = -\frac{d\Phi_B}{dt}[/tex]

You're given the change in the magnetic flux (Remember, one Weber is one Tesla * m^2) and the time over which the change occurred in this question.
 
111
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So would it just be

71.1mWb / 16.7 ms = 4.25 mV ?
 

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