- #1
JustStudying
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Hi guys!
So I've just recently started learning about phase relationships for inductors and capacitors in an AC circuit. But a few things keep bugging me:
Say we have a RL circuit (a resistor + inductor + voltage source all in SERIES), and we we're asked to draw a phasor diagram for the voltages and currents.
when they say the current of an inductor lags the voltage for an inductor, does this mean:
1. The inductor causes the current through the whole circuit to lag (as all components are in series)?
2. I've always imagined the voltage source being kind of..'independent' of the circuit, so I've always thought that the Vsupply phasor and the Icircuit phasor should always be in phase no matter what the circuit components are. From what I've learned so far, this doesn't seem to be the case. E.g If a capacitor,resistor and voltage source were all in parallel, then..does the capacitor cause the supply voltage to 'lag' the circuit current? -> shouldn't the supply voltage and circuit current be in phase?
can anyone shed some light on this?
thanks guys :shy:
So I've just recently started learning about phase relationships for inductors and capacitors in an AC circuit. But a few things keep bugging me:
Say we have a RL circuit (a resistor + inductor + voltage source all in SERIES), and we we're asked to draw a phasor diagram for the voltages and currents.
when they say the current of an inductor lags the voltage for an inductor, does this mean:
1. The inductor causes the current through the whole circuit to lag (as all components are in series)?
2. I've always imagined the voltage source being kind of..'independent' of the circuit, so I've always thought that the Vsupply phasor and the Icircuit phasor should always be in phase no matter what the circuit components are. From what I've learned so far, this doesn't seem to be the case. E.g If a capacitor,resistor and voltage source were all in parallel, then..does the capacitor cause the supply voltage to 'lag' the circuit current? -> shouldn't the supply voltage and circuit current be in phase?
can anyone shed some light on this?
thanks guys :shy:
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