Find Thevinin Equivalent of Circuit - 20V, 10kΩ

[systrade25]

Hi,

Im trying to find the Thevinin Equivalent of the attached circuit.

The answers I am getting are
Vth = 20v
Rth = 10kΩ

The attachment shows my workings for the problem.

Please advise if there are any errors in my work and if you could where and what i need to do to correctly solve them.

Many Thanks

 

[Jony130]

Hi, the correct answer for Vth voltage is 30V, its looks like you simply forget about 2mA constant current source in your approach.
And yes Rth is indeed equal to 10K.

 

[systrade25]

Thanks very much for the reply Jony130 and for pointing out my mistake.

I've attached my revised workings could you check to see if the steps I have taken are correct, I am trying to solve this using a source equivalent method.

Thanks again.

 

[Jony130]

I don't see any mistake so good job for You.