Physics-current electricity, circuit

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SUMMARY

The discussion centers on a physics homework problem involving current electricity and circuit analysis. The user seeks assistance in determining a voltage of 4V within a circuit that includes resistors of 10 ohms and 20 ohms. A correction was noted regarding the resistor values, specifically changing a 15-ohm resistor to 10 ohms. The conversation highlights the importance of accurately identifying resistor values for circuit calculations.

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  • Understanding of Ohm's Law
  • Familiarity with series and parallel resistor configurations
  • Basic knowledge of voltage, current, and resistance
  • Ability to interpret circuit diagrams
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  • Study Ohm's Law and its applications in circuit analysis
  • Learn how to calculate equivalent resistance in series and parallel circuits
  • Explore voltage division in resistor networks
  • Practice solving circuit problems using Kirchhoff's laws
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Students studying physics, particularly those focusing on electricity and circuit analysis, as well as educators seeking to enhance their teaching methods in these topics.

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Homework Statement



[PLAIN]http://img208.imageshack.us/img208/4577/physicso.jpg

Homework Equations





The Attempt at a Solution



dont know how to do..
help please, how can i find that is 4V?
 
Last edited by a moderator:
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oh, some small amendment:
that 15ohm at the top righthand corner should be 10ohm
 
lydigihome said:
oh, some small amendment:
that 15ohm at the top righthand corner should be 10ohm

But the resistor in the top right-hand corner is 20 ohms...
 

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