Can you me with this thevenin problem ?

  • Thread starter Thread starter ujnikm
  • Start date Start date
  • Tags Tags
    Thevenin
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
3 replies · 2K views
ujnikm
Messages
2
Reaction score
0
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 ??
 
Last edited by a moderator:
Physics news on Phys.org


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.