R1 + R2 in Parallel with R3 + R4 + R5 in Series | Find Req

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The discussion focuses on calculating the equivalent resistance of a circuit with five resistors connected to an 8V battery. Participants express confusion about the arrangement of resistors R1, R2, R3, R4, and R5, particularly regarding their series and parallel connections. The use of Kirchhoff's laws and the Wheatstone bridge concept is suggested to solve for the unknown voltages and currents in the circuit. There is a back-and-forth about setting up equations for the currents and potential differences across the resistors. Ultimately, the conversation highlights the complexity of the circuit analysis and the need for careful application of electrical principles to find the equivalent resistance.
  • #31
Use Delta to Wye Transformation. It's another way to find equivalent resistance of this network.
 
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  • #32
arl146 said:
what happens if i get a negative value for V?
i got V_P' = 3.4413 V and V_P = -3.709497 V
may be my calculations but ...i ended up with 0.8477 for Req

Sorry, I did not notice that your I2 was also wrong. I2 flows from potential VP to zero, so I2=Vp/R2.

ehild
 

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