How to find value of inductance in LR series circuit?

  • Thread starter mathman44
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  • #1
mathman44
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Hi. This is a question from my lab. I have a series of measurements of the voltage drop across a resistor for various frequencies with a constant voltage source in an LR series circuit. From these measurements I am supposed to calculate the value of the inductance "L". How can I do this?
 

Answers and Replies

  • #2
Phrak
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For homework help you have to show some work to get some help.

What is the reactance, XL as a function of frequency?
 
  • #3
mathman44
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XL = [tex]2*pi*f*L[/tex]
 
  • #4
Phrak
4,254
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OK... are you going to solve for L using geometry or the equations for complex impedence?
 
  • #5
mathman44
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Geometry. Got it, thanks.
 
  • #6
Phrak
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Good deal.
 

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