This means then that we cannot
simply add together V
R
, V
L
and V
C
to find the supply
voltage, V
S
across all three components as all three voltage vectors point in different
directions with regards to the current vector. Therefore we will have to
find the supply
voltage, V
S
as the Phasor Sum of the three component voltages combined together
vectorially.
Kirchoff’s voltage law ( KVL ) for both loop and nodal circuits states that around any closed
loop the sum of voltage drops around the loop equals the sum of the EMF’s.
Then applying
this law to the these three voltages will give us the amplitude of the source voltage, V
S
as.
Dostları ilə paylaş: