Finding current and equivalent resistance

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SUMMARY

The discussion focuses on calculating the current through specific points in a circuit consisting of a 48.0 V battery and five resistors: R1 (111 Ω), R2 (182 Ω), R3 (663 Ω), R4 (334 Ω), and R5 (465 Ω). The equivalent resistance (Req) is determined to be 193 Ω. To find the currents at points C, D, and G, the application of Kirchhoff's Current and Voltage Laws is essential, particularly in calculating the voltage drop across R1, which facilitates the determination of currents through R4 and R5.

PREREQUISITES
  • Understanding of Ohm's Law (V=IR)
  • Familiarity with Kirchhoff's Current Law
  • Knowledge of Kirchhoff's Voltage Law
  • Basic circuit analysis techniques
NEXT STEPS
  • Calculate voltage drops across individual resistors using Ohm's Law
  • Explore advanced circuit analysis techniques using mesh and nodal analysis
  • Learn about series and parallel resistor combinations for equivalent resistance
  • Investigate the impact of varying resistor values on overall circuit performance
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Students studying electrical engineering, circuit designers, and anyone involved in analyzing or solving circuit problems.

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Homework Statement


The circuit consists of a battery (V0 = 48.0 V) and five resistors (R1 = 111 Ω, R2 = 182 Ω, R3 = 663 Ω, R4 = 334 Ω, and R5 = 465 Ω). Find the current passing through C, D, and G.
VTqne9.png


Homework Equations


V=IR

The Attempt at a Solution


I tried to find the equivalent resistance (Req = 193 Ω). The problem had a hint that said after that, I need to work backwards to find the currents. I understand that C and G will be the sum of the currents at R4 and R5, but I don't know how to find the currents at R4 and R5.
 
Physics news on Phys.org
If you know the equivalent resistance of the circuit then you can calculate the
voltage drop across R1. Then you should easily be able to calculate the currents
thru the remaining resistors.
 

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