[Circuits Lab Help] Voltage across inductor not perfectly π radians out of phase with voltage across capacitor. We're not sure why.
Data we collected show that the voltage across the inductor (purple) is not exactly π radians out of phase with the voltage across the capacitor (brown).
(0.00158 - 0.00150) seconds = 0.00008 seconds.
frequency = 500 Hz ; T = 0.002s.
0.00008 is to 0.002 as (x) is to 2π => (x) = 0.08π radians.
We are stumped. We are also idiots in need of help.
Posted Nov 4, 2022, 1:39 AM UTC
32
Resistance exists, likely in your inductor.
Remember voltage is in phase with current in a resistor, but pi/2 out of phase in reactive components like your inductor. Since resistance is non zero, you basically get a sum of the 2, hence less than pi/2.
There is also equivalent series resistance in the capacitor too, which can be a few orders of magnitude larger if its an electrolytic