|
Since all components are
in parallel, the same
voltage is across all of
them.
This is indicated by the
horizontal phasor.
Resistor current and
voltage are in phase, so
resistor current is also
along this phasor.
CIVIL tells us that
capacitor current leads
the voltage, and
inductor current lags
the voltage.
Since the capacitor and
inductor currents are
180 degrees out of
phase, then subtracting
one from the other gives
us the resulting current
for the two.
Capacitor current minus
inductor current.
To find the result of
this current and the
resistor current we use
Pythagoras.
The final result is the
current taken from the
supply.
|
