Help with Loops & Currents for Exam Revision

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SUMMARY

The discussion focuses on understanding loop currents in electrical circuits, specifically addressing a user's difficulty with a problem from a math website. The user initially struggled with sign conventions for shared resistors but resolved the issue by recognizing the importance of adding currents in the same direction. This highlights the significance of proper sign usage in loop current analysis.

PREREQUISITES
  • Basic understanding of electrical circuits
  • Familiarity with Kirchhoff's laws
  • Knowledge of current direction conventions
  • Experience with solving circuit equations
NEXT STEPS
  • Study Kirchhoff's Voltage Law (KVL) in detail
  • Practice loop current analysis with various circuit examples
  • Learn about mesh analysis techniques
  • Explore common mistakes in circuit analysis and how to avoid them
USEFUL FOR

Students preparing for exams in electrical engineering, educators teaching circuit analysis, and anyone seeking to improve their understanding of loop currents in electrical circuits.

Quadrophenia
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Help - Loops Currents. :(

hey there I'm revising for an exam and i can't really do loop currents
i was trying to do this sum http://mathonweb.com/help/backgd4.htm (example2) but kept getting the rong sign for equations (for shared resistors):( could someone please explain to me!
thanx in advance.:cry:
 
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Can you show what you've done? Maybe we can help then.

Regards

P.S. Welcome to PF.
 
alright thanx..i'm sorted now..i was making a silly mistake.. of not adding the current since they were in the same directions! we've done example of the opposite so that's why i subtracting :) thanks for the reply.
 

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