Pleaseeee help me! I already solved them, I'm only asking to you if they're right or not
So, First page:
1) Is the only one I wasn't able to solve.. I know I have to attach to the terminals 1V source but then? what am i supposed to do?
2) Laplace > 1/2 e^2Ts  2/s e^3Ts + 1/s e^4Ts
3) T= L/(Req) where Req= (R // (R+R))+R)
4) No current right? I mean, it's an ideal opamp so no current in inverting input and no current in noninverting input so everything has 0 current! So 0!
Second page:
1) if part one has been open circuited we're looking for impedance parameter, so, for example Z22 will be= v2/i2 while i1=0
2) in order to compute phasor I
First i find, after summing in parallel 8j2 with j6 I
Then, by current division i find it in the branch i'm looking for
I= 0.72 (phase 76.35°)
3) Having apparent power that is Vrms*Irms= 50
and pf=0.8 > since V= 20 > vrms = 20/√2 = 14.14
so Irms= 2.28
So z= 6.20 phase of 36.86
4) 1/(s^2CL + sRC + 1)
Last Page is about First Order Circuit
for t<0 vc(0) = 14/3
for t>0 what is going on?? I mean, the switch closes so the 7A current passes all on the right... so??
Thank you so much for your time, I really really appreciate it
So, First page:
1) Is the only one I wasn't able to solve.. I know I have to attach to the terminals 1V source but then? what am i supposed to do?
2) Laplace > 1/2 e^2Ts  2/s e^3Ts + 1/s e^4Ts
3) T= L/(Req) where Req= (R // (R+R))+R)
4) No current right? I mean, it's an ideal opamp so no current in inverting input and no current in noninverting input so everything has 0 current! So 0!
Second page:
1) if part one has been open circuited we're looking for impedance parameter, so, for example Z22 will be= v2/i2 while i1=0
2) in order to compute phasor I
First i find, after summing in parallel 8j2 with j6 I
Then, by current division i find it in the branch i'm looking for
I= 0.72 (phase 76.35°)
3) Having apparent power that is Vrms*Irms= 50
and pf=0.8 > since V= 20 > vrms = 20/√2 = 14.14
so Irms= 2.28
So z= 6.20 phase of 36.86
4) 1/(s^2CL + sRC + 1)
Last Page is about First Order Circuit
for t<0 vc(0) = 14/3
for t>0 what is going on?? I mean, the switch closes so the 7A current passes all on the right... so??
Thank you so much for your time, I really really appreciate it
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