Calculating Potential Difference in a Series Circuit

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SUMMARY

The discussion centers on calculating the potential difference in a series circuit, specifically for a 4.0 ohm resistor with a current of 1.4A. The formula used is V=IR, leading to the conclusion that the potential difference (Va-Vb) is 48V. The user expresses initial confusion about finding the potential difference when voltage is not directly provided, but clarifies that potential difference and voltage are synonymous terms. This reinforces the understanding of basic electrical principles in series circuits.

PREREQUISITES
  • Understanding of Ohm's Law (V=IR)
  • Knowledge of series circuit configurations
  • Familiarity with electrical resistance concepts
  • Basic algebra skills for calculations
NEXT STEPS
  • Study series circuit analysis techniques
  • Learn about calculating equivalent resistance in series circuits
  • Explore practical applications of Ohm's Law in real-world scenarios
  • Investigate the relationship between current, voltage, and resistance in different circuit types
USEFUL FOR

This discussion is beneficial for electrical engineering students, educators teaching basic circuit theory, and anyone looking to solidify their understanding of potential difference in series circuits.

wkn0524
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1. If the current in the 4.0 ohm resistor is 1.4A. What is the magnitude of the potential difference. Va-Vb?



2. V=IR, 1/Req=1/r1 +1/r2 ...



3. Va-Vb= 48V

I was stuck on beginning of the question. I knew how to start if the voltage is given but now asking me to find the potential difference and make me headache. I'm a beginner on the electrical course.

Thank.
 

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Potential difference and voltage are two names for the same thing.
 
Never mind. Deleted.
 

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