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Jone133

  • 2 years ago

Formulas for Q3? "For the last two parts assume I = 2A" Also, formulas for Q6 please :)

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  1. EngSara
    • 2 years ago
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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 but i don't know the RTH

  2. ali_amjad
    • 2 years ago
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    Rth plzzzz

  3. Jone133
    • 2 years ago
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    Thank you Sara! I'm still missing Rth formula, and the 2nd part of Q3 ones...

  4. Zozi
    • 2 years ago
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    When I=2 v1 is 1,32 and v2 is 0,66

  5. Jone133
    • 2 years ago
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    Thank you zozi, but that seems to be wrong:c

  6. Jone133
    • 2 years ago
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    what formulas did you use? My Resistances are 1ohm

  7. Zozi
    • 2 years ago
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    just valculating v1, one 1 ohm and two serial resistors in paralel means a 0,66ohm resistor. From this U=I*R for v1 and for v0 its a half divider from two one ohm resistor...

  8. benzo
    • 2 years ago
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    sara do you mean I1= vin/(r3-b*r1*r3 vo=vin*(r3-(b*r1*r3)+r1+r2+a*r2)/(r3-b*r1*r3)

  9. benzo
    • 2 years ago
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    q6

  10. JoãoVitorMC
    • 2 years ago
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    Q6 Rth please Vin=18V, R1=1.5Ω, R2=3Ω, R3=4Ω, A=1.5 and B=0.5.

  11. brunofornari
    • 2 years ago
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    como vc fez o Q3, Joao?

  12. JoãoVitorMC
    • 2 years ago
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    eu achei aki as respostas para o meu

  13. Jone133
    • 2 years ago
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    Thank you once again zozi, it was v0= 0.666 and v1=1.32, it was the other way around Also, for you Joao Vitor, RTH = 3.6

  14. benzo
    • 2 years ago
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    jones what the formula for q6

  15. brunofornari
    • 2 years ago
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    are you sure abt that, Jone133?

  16. Jone133
    • 2 years ago
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    Yes, for I=2A on Q3 and for the values of JoaoMC on Q6

  17. JoãoVitorMC
    • 2 years ago
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    THANK YOU SOO MUCH!!

  18. Jone133
    • 2 years ago
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    RTH= Vth / ISC Isc= Current on short circuit

  19. benzo
    • 2 years ago
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    I1 Vo Vth Rth

  20. JoãoVitorMC
    • 2 years ago
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    but how did you calculate the Rth ???

  21. JoãoVitorMC
    • 2 years ago
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    Finally 100% \o/

  22. Jone133
    • 2 years ago
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    congrats! It's a great accomplishment, I hope I get 100% too on the final :D

  23. benzo
    • 2 years ago
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    formula please jones...

  24. brunofornari
    • 2 years ago
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    Hey Jone133.. my values are: 10A and -3A for v0 and 5A for v1 and v0

  25. brunofornari
    • 2 years ago
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    Dá uma força com o 6 aí, joao?? =D

  26. Jone133
    • 2 years ago
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    I don't have formulas, sorry... I Only know that RTH = VTH / Isc and Isc is the current on short circuit. Zizo told me the values for Q3.

  27. benzo
    • 2 years ago
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    mc congrats q6 whats the formula

  28. Jone133
    • 2 years ago
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    para os valores de JoaoMC, Vo, I and Vth are 1.8 The formulas are on the 1st answer

  29. benzo
    • 2 years ago
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    ok I1 and vo

  30. Jone133
    • 2 years ago
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    also, vo = vth

  31. JoãoVitorMC
    • 2 years ago
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    Q6: Vin=18V, R1=1.5Ω, R2=3Ω, R3=4Ω, A=1.5 and B=0.5. 1.8 1.8 1.8 3.6

  32. JoãoVitorMC
    • 2 years ago
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    but still no formulas...

  33. Jone133
    • 2 years ago
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    For Q3 v0= 0,66*I/2 but if its over +/- 2V the zener cuts it to +/-2V (found zizo's answer on another question)

  34. Jone133
    • 2 years ago
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    Thank you Zozi!

  35. Zozi
    • 2 years ago
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    and v1 is 0,66*I

  36. benzo
    • 2 years ago
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    JoãoVitorMC u is the mannn thank u

  37. JoãoVitorMC
    • 2 years ago
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    welcome :)

  38. JoãoVitorMC
    • 2 years ago
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    i will post soon a topic here about solve all the Question 3 and others that i complete understant.

  39. brunofornari
    • 2 years ago
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    Eu vi que teu Rth deu o dobro do teu Vth.. posso assumir isso pro meu, será? meu vth tá em 7.5

  40. JoãoVitorMC
    • 2 years ago
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    acho melhor não arriscar não

  41. JoãoVitorMC
    • 2 years ago
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    espera até amanha, deve aparecer mais soluções

  42. JoãoVitorMC
    • 2 years ago
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    agora q acabei aki, vou trabalhar em como encontrar as respostas e irei postar aki o mais rapido possivel

  43. ali_amjad
    • 2 years ago
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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

  44. ali_amjad
    • 2 years ago
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    what is Isc in Q6

  45. JoãoVitorMC
    • 2 years ago
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    Question 3 explained: http://openstudy.com/study#/updates/5089d2f4e4b077c2ef2e01ca

  46. ali_amjad
    • 2 years ago
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    Rth help plzzz

  47. vivek2609
    • 2 years ago
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    if you assume I=2A then the current through the parallel resistor will be 1.3333 A ant V1 will be(1ohm*1.333) 1.333V the remaining current flows through the zener diode its resistance will be 1ohm so v0 will be 0.667v

  48. kaplko
    • 2 years ago
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    anyone qno 4 part first equation????

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