Can you me with this thevenin problem ?

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The discussion revolves around solving a Thevenin problem where the user calculates Rth as 3.667 KΩ and finds Vth1 to be -3.333 V after applying superposition. The user calculates Vth2 as 25 V but receives conflicting information from others suggesting Vth2 could be 30 V. Participants emphasize the importance of showing the work for calculating Vth2 and remind that terminals A-B should be treated as an open circuit during this process. The conversation highlights the need for clarity in calculations to resolve discrepancies in Thevenin voltage values.
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Can you please help me with this thevenin problem ?

Please guys can you help me with this??
http://forum.allaboutcircuits.com/cache.php?url=http://s14.postimage.org/9eysbodr5/image.png
I set all sources to 0 so we have Rth=3.667 KΩ
then using superposition and remove the current source and replace it with open circuit so we have Vth1 =-3.333 V
then remove the voltage source and replace it with short circuit so we have Vth2=25 V
so Vth=25-3.3333=21.667 V

other friends tell me that Vth2=30 V

what's the correct ??
 
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ujnikm said:
Please guys can you help me with this??
http://forum.allaboutcircuits.com/cache.php?url=http://s14.postimage.org/9eysbodr5/image.png
I set all sources to 0 so we have Rth=3.667 KΩ
then using superposition and remove the current source and replace it with open circuit so we have Vth1 =-3.333 V
then remove the voltage source and replace it with short circuit so we have Vth2=25 V
so Vth=25-3.3333=21.667 V

other friends tell me that Vth2=30 V

what's the correct ??

Listen to your friends :wink:
 
Last edited by a moderator:


gneill said:
Listen to your friends :wink:

why?
 


ujnikm said:
why?

Show your work for finding Vth2. Remember that terminals A-B are an open circuit when finding the Thevenin voltage.
 

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