Qaisersatti
thanks god finally its done 100 percent with the help of all of u friends..if someone needs help message me i will be replying tomorrow morning ..
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EngSara
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the formula of RTH plz
ali_amjad
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what abut q6 and q4
EngSara
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q4
1-(R*b*vIN)/(1+R*b)
2-(VS*(1+R*b)-vIN)/(1+R*b)
Jone133
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Formulas for Q3?
"For the last two parts assume I = 2A"
Also, formulas for Q6 please :)
ali_amjad
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plzz plzz Q3 and Q6
EngSara
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q6
Vin=45V, R1=1.5Ω, R2=2Ω, R3=6Ω, A=2 and B=0.5
1-i1=5
2-vo=7.5
3-vth=7.5
ali_amjad
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formulae
ali_amjad
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plzz post formulae
KezinDazel
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Thx EngSara
EngSara
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q6
the formula
1-Vo* (R3-(B*R1*R3)+R1+R2+A*R2)/(R3-B*R1*R3)=VIN
2-i1=V0/(R3-B*R1*R3)
3- vo = vth
chaand.i
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Someone with Rth formula , would be appreciated !
ali_amjad
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RTH???
chaand.i
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@ali_amjad , Brother , it is the last part of question 6
KezinDazel
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Anyone has the formulas of the Q3?
EngSara
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i don't know the Rth
chaand.i
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@EngSara , same is the case here :-/
ali_amjad
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what about Q3
EngSara
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q3
if I=10
vo=2
if I=-3
vo= -1
if I =1
vo=0.333
v1=0.665
ali_amjad
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plzz the formula aor hint for Q3
EngSara
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the resistance of zener =1
KezinDazel
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Thx EngSara Again
EngSara
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you are welcome :)
ali_amjad
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i am trying Q3
chaand.i
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@EngSara , how did you find out that if I = 10 , then vo = 2 ????
ali_amjad
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@EngSara not getting it in Q3
ali_amjad
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@chaand.i i dont thimk we sholud think zener as R=1 because if so then v0=7.5 . .??
chaand.i
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@EngSara ????
benzo
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engsara please help me with q3 what the formula or answer I 9a then vo =...I is -3 vo=..Iis 4 then v1= and vo=
Zozi
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chaand.i its to 3,3V but the zener cuts it down to 2V
Jone133
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Q3 for I=2A? What's the formula? :3
ali_amjad
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@Zozi what the formula for Q3
Zozi
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\[(2ohm/3ohm)*I\] for v1 and for v2 its half, but over two volts the zener cuts dovn the voltage to 2V
JoãoVitorMC
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RTH pleasee
benzo
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engsara please help......q6 I1, Vo, Vth, Rth formula pleaseeee?
JoãoVitorMC
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Q6 Rth please, Vin=18V, R1=1.5Ω, R2=3Ω, R3=4Ω, A=1.5 and B=0.5.
JoãoVitorMC
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i got it My Rth= 3.6
ali_amjad
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Q3: p1 : zener voltage sholud be less than the given current so vo=2V which is zener voltage
Q3: P2 : I1=( 0.66 * I ) . . . also find I2 = (0.33 * I) .. . Vo= I2
Q3: P3 : (a) I1=( 0.66 * I ) . . . also find I2 = (0.33 * I) .. . Vo= I2 . . (b) v1 = I1
ali_amjad
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@JoãoVitorMC how you got it?? Rth
EngSara
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@chaand.i the volt must be 3.33 but when see the fig of zener , the max volt is 2
ali_amjad
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@JoãoVitorMC : if you consider zener as R=1phm resistor then this question would be much much simpler
ali_amjad
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R=1ohm
JoãoVitorMC
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yes that's what i do, but this happens only then the voltage saw by the element is in the range -+2
ali_amjad
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yup because in the first part the current source is too big and then zener limits the voltage
ali_amjad
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Rth ???/
ali_amjad
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thank you @EngSara and @Zozi for help of Q3
brunofornari
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RTH= Vth / ISC
Isc= Current on short circuit
How can I find the ISC?