# Thevenin therem problem,,,,,,Plllz Help !!???

Discussion in 'Homework Help' started by ujnikm, Nov 15, 2012.

1. ### ujnikm Thread Starter New Member

Nov 15, 2012
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Hello guys,,,,,,,, I've an assignment for electronics that i should deliver on Saturday but there is a problem that i can't solve anymore so pllz help me !!!???
in this pic he wants R Thevenin pllz tell me how to find it while having 2 sources one is voltage and the other is current and u can't use source transformation !!!

2. ### Jony130 AAC Fanatic!

Feb 17, 2009
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To find Rth all you need to do is to replace all voltage sources with short circuit and all current sources with open circuit.

3. ### ujnikm Thread Starter New Member

Nov 15, 2012
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thanx man i forgot this,,,,,coz i'm fresh to Thevenin theorem

4. ### ujnikm Thread Starter New Member

Nov 15, 2012
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if i want the the Thevenin equivalent how will it be ??!!!

5. ### Jony130 AAC Fanatic!

Feb 17, 2009
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Well I don't understand your question?

6. ### ujnikm Thread Starter New Member

Nov 15, 2012
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i mean that if he wants me to put this circuit in the Thevenin form (A voltage source(Vth) and A resistance(Rth)) in series.
now we have Rth=6 Ω
we have to evaluate Vth ...how could we do this??
hint:i mean that i want the Thevenin equivalent circuit for it

7. ### Jony130 AAC Fanatic!

Feb 17, 2009
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OK. I understand now. Simply use circuit analysis to find Vth.
For example try use superposition
And yes Rth resistance is equal to = 2 + 12/3 = 6Ω

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8. ### ujnikm Thread Starter New Member

Nov 15, 2012
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Thank you very much Jony ,,,,,, I'm sorry if my questions were silly

9. ### Jony130 AAC Fanatic!

Feb 17, 2009
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You don't need to be sorry. Did you managed to solve this problem and find the answer?
I find Vth = 52V and I use superposition.
First I remove a current source (open circuit) and find Vth1. Next I remove a voltage sources (short circuit) and connect a current source and find Vth2. And finally answer is Vth = Vth1+Vth2

Last edited: Nov 16, 2012
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10. ### ujnikm Thread Starter New Member

Nov 15, 2012
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Thank u for helping ,,,,,, With ur Help I manage to solve it