Series and parallel circuits help

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SUMMARY

The discussion centers on solving a circuit problem involving a 20-ohm resistor and a battery with a voltage of 25V in parallel branches. Participants emphasize the importance of understanding voltage drops in parallel circuits, noting that the voltage across the parallel branches cannot exceed the battery voltage. The conversation highlights the need to rearrange the circuit for clarity, suggesting that visualizing the battery on the left with the positive terminal at the top can aid in comprehension.

PREREQUISITES
  • Understanding of Ohm's Law
  • Knowledge of series and parallel circuit configurations
  • Familiarity with voltage drops in electrical circuits
  • Basic circuit diagram interpretation skills
NEXT STEPS
  • Study the principles of voltage division in series circuits
  • Learn about Kirchhoff's laws for circuit analysis
  • Explore techniques for simplifying complex circuits
  • Practice solving circuit problems involving multiple resistors in parallel and series
USEFUL FOR

Students studying electrical engineering, educators teaching circuit theory, and anyone seeking to improve their problem-solving skills in electrical circuits.

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Homework Statement



In the circuit shown, find the current in the 20-ohm resistor and the potential difference between points X and Y.


Homework Equations





The Attempt at a Solution



I've never really ran into a problem where the battery is in the parallel branches with resistors. The voltage drop of the parallel branch surely can't be 25V otherwise there would no voltage drop over the other resistors which are in series.

I am quite lost with this question. Could someone please explain in full how they got their answer?

Thanks.
 

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Rearrange/redraw the circuit so that it looks more familiar. eg with the battery on the left with +ve at the top...
 

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