Hello All,
I am studying the phase relationship between the voltage and the current. I understand that for an inductor the voltage leads the current by 90 degrees and with a capacitor the voltage lags the current by 90 degrees and for a resistor under a few megohm's the voltage and current are in phase. My question: given the following in time domain form,
v = 100sin(377t + 10 degrees) and
I = 5sin(377t + 80 degrees), how do I tell by looking at the phase angle, if v is leading i, or if i is lagging v? I would be very, very greatful for any help.
This was the only web site I could think would help me with this problem. Thank you all kindly!!
Daniel

Look at the difference between the two arguments. The current is 70 deg ahead of the voltage.

:Look at the difference between the two arguments. The current is 70 deg ahead of the voltage.
:
:
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Remember ELI the ICE man...in an inductive circuit (L), E comes before I, but in a capacitive circuit (C), I comes before E.
Lewis

::Look at the difference between the two arguments. The current is 70 deg ahead of the voltage.
::
::
::
:Remember ELI the ICE man...in an inductive circuit (L), E comes before I, but in a capacitive circuit (C), I comes before E.
:Lewis
:

I took AC Theory in High School Tech course in 1957 and my initial thinking is you can't tell which it is unless you know the circuit composition (eg capacitance, inductance).