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#1
08-01-2006, 02:11 PM
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Calculating Inductance
Hi,
Ive been using complex numbers and my scientific calculator to great success as shown in this sites tutorial. I like the why I can just use ohms law, as with DC analysis. But how do I calculate the inductance without going back to trig. Parallel R-L ac circuit: "Resistor 40R; Supply 200V, 50Hz Supply current is 8A. Inductor, L? Whats the inductance of the coil, L?" 
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#2
08-01-2006, 03:35 PM
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Hi,
No Trig, just simple algebra. I = E/R, using the 40 ohm resistor, will give you something other than 8 amps. R = E/I will give you the resistance of the paralleled resitor and inductance. Figure the correct resistance to parallel with 40 ohms that give the 8 amps of current. Then, using L = RL/2piF, you have the inductance.
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