- #1
mr_coffee
- 1,629
- 1
Hello every9one I'm stuck on finding the first part:
A series RLC circuit is driven by an alternating source at a frequency of 380 Hz and an emf amplitude of 90.0 V. The resistance is 20.0 , the capacitance is 12.1 µF, and the inductance is 24.2 mH.
What is the rms potential difference across the resistor?
my first answer was wrong,
Am i t hinking this right?
Vab = Vmax sin(wt)
Vab = iR
i = 90/20 = 4.5, but thisn't isn't i max is it?
do i have to take i/sqrt(2) to get i max?
then with i max can i find the rms across the ressitor?
I found a formula that syas:
Vab = Vmax*sin(wt) but time isn't given at all, netiehr isVmax!
A series RLC circuit is driven by an alternating source at a frequency of 380 Hz and an emf amplitude of 90.0 V. The resistance is 20.0 , the capacitance is 12.1 µF, and the inductance is 24.2 mH.
What is the rms potential difference across the resistor?
my first answer was wrong,
Am i t hinking this right?
Vab = Vmax sin(wt)
Vab = iR
i = 90/20 = 4.5, but thisn't isn't i max is it?
do i have to take i/sqrt(2) to get i max?
then with i max can i find the rms across the ressitor?
I found a formula that syas:
Vab = Vmax*sin(wt) but time isn't given at all, netiehr isVmax!