Thevenin and Norton Theories help

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SUMMARY

The discussion revolves around calculating the Thevenin equivalent circuit for a Wheatstone bridge design with a 10 V DC power supply. The participant calculated Rth as 2 ohms and Vth as 5.16 V, while the instructor's values were Rth = 1.42 ohms and Vth = 6.128 V. The discrepancy arises from the incorrect application of parallel and series resistance formulas. The correct approach involves accurately determining the equivalent resistance and voltage using Thevenin's theorem.

PREREQUISITES
  • Understanding of Thevenin's theorem
  • Familiarity with Wheatstone bridge circuits
  • Knowledge of series and parallel resistor combinations
  • Basic circuit analysis skills
NEXT STEPS
  • Review Thevenin's theorem applications in circuit analysis
  • Study parallel and series resistor calculations in depth
  • Practice Wheatstone bridge problems with varying resistor values
  • Explore Norton’s theorem and its relationship to Thevenin's theorem
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Electrical engineering students, circuit designers, and anyone seeking to deepen their understanding of Thevenin and Norton equivalent circuits.

classyfella
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the problem presents a wheatstone bridge design, with a 10 V DC power supply. R1 is 2 ohms, R2 is 3, Rx (presented as R4 for this problem) is 4, the typical 'bridge' portion is replaced with a 1 ohm resistor (labeled R3), and where you usually have R3 you have a load, which is 5 ohms.
The problem asks to present a thevenin model for this same probelm, Vth and Rth.
My instructor has his answers posted, but not how he got them.

My answers came out with Rth = R1||R2+R3||R4 = 2||3+4||1 = 2
my Voltage obtained came out to Vth = R!/(R1 + R2||(R3+R4)) * Vs = 2/(2+3||(1+4))*10=5.16V
however for Rth my instructor has 1.42 ohms and for Vth he has 6.128

Can anyone help me see what I did wrong, how to get the values my teacher got (as I haven't been able to figure it out.) and possibly give any tips/tricks for thevenin and norton, as these guys are giving me a lot more trouble than I care for.
 
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I'd need to see the schematic.
 
You should post the pic of your question kinda becomes hard to visualize (rather lazy):)
 

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