Find Thevinin Equivalent of Circuit - 20V, 10kΩ

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Discussion Overview

The discussion focuses on finding the Thevenin equivalent of a given electrical circuit, specifically determining the Thevenin voltage (Vth) and Thevenin resistance (Rth). Participants are sharing their calculations and seeking feedback on their approaches.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant claims Vth = 20V and Rth = 10kΩ based on their calculations.
  • Another participant contests the Vth value, asserting it should be 30V due to the influence of a 2mA constant current source that was overlooked.
  • A third participant expresses gratitude for the feedback and shares revised calculations using a source equivalent method.
  • One participant supports the original poster's revised work, indicating no mistakes were found in the updated approach.

Areas of Agreement / Disagreement

There is disagreement regarding the value of Vth, with one participant asserting it is 20V while another claims it is 30V. Rth appears to be agreed upon as 10kΩ.

Contextual Notes

The discussion includes varying interpretations of the circuit elements and their contributions to the Thevenin equivalent, which may depend on specific assumptions about the circuit configuration.

systrade25
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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
 

Attachments

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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.
 
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.
 

Attachments

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

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