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Inductor/Resistor/Capacitor Equivalency

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Monty Hall

Jan 1, 1970
0
Hello,

I'm a Chemical Engineer that took an "Electrical Engineering for
Non-Electrical Engineers" class as part of my degree ~7 years ago. I was
wondering if somebody can reconstruct my failing memory when I recalled my
instructor saying something to the effect that "For a resistor, inductor,
capacitor, one can be simulated by the other two" I don't recall in what
context he was speaking - or if I'm recalling it correctly. It definetly
had something to do w/ interchangeability. Can somebody direct me to a text
or website concerning this matter?

Regards,

Monty,
 
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William J. Beaty

Jan 1, 1970
0
Monty Hall said:
instructor saying something to the effect that "For a resistor, inductor,
capacitor, one can be simulated by the other two"

Nope, can't simulate an inductor using a resistor and capacitor.
Use a capacitor and an operational amplifier?

http://www.google.com/search?q=gyrator++inductor


Perhaps he meant that you can construct a single-stage lowpass filter
using either an inductor *or* a capacitor, plus a resistor. Same is
true for hipass.
 
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Steve Evans

Jan 1, 1970
0
Hello,

I'm a Chemical Engineer that took an "Electrical Engineering for
Non-Electrical Engineers" class as part of my degree ~7 years ago. I was
wondering if somebody can reconstruct my failing memory when I recalled my
instructor saying something to the effect that "For a resistor, inductor,
capacitor, one can be simulated by the other two"

Nope! Can't be done iMHO, whichever way you look at it.
 
E

Externet

Jan 1, 1970
0
Hi.
In an alternating current context, a resistive value R can be obtained
as capacitive reactance Xc=R or by inductive reactance XL=R.
XL = 2¶fL
Xc = 1÷2¶fC
In resonant circuits, capacitors and inductors together (in series or
parallel) can also yield a resistive value equal to R from a resistor.

Maybe that is what you mean.
Miguel
 
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