Question about potential difference.

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SUMMARY

The discussion clarifies the distinction between electromotive force (emf) and potential difference (p.d.) in electrical circuits. Emf represents the work done by a source in moving a unit charge across a circuit, while p.d. refers to the energy dissipated by components such as resistors. This differentiation is crucial for understanding energy flow in electrical systems, emphasizing that emf is the energy input and p.d. is the energy output.

PREREQUISITES
  • Basic understanding of electrical circuits
  • Knowledge of electromotive force (emf) and potential difference (p.d.)
  • Familiarity with circuit components like resistors
  • Concept of energy conservation in electrical systems
NEXT STEPS
  • Study the relationship between emf and p.d. in various circuit configurations
  • Learn about energy dissipation in resistors and other circuit components
  • Explore Kirchhoff's laws for circuit analysis
  • Investigate the role of voltage sources in electrical circuits
USEFUL FOR

Electrical engineering students, circuit designers, and anyone seeking to deepen their understanding of energy dynamics in electrical circuits.

yaseen shah
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yesturday I read in a book that it is not correct to say that p.d is the work done in moving a unit charge between the points concerned i can not understand that point please explain that!
 
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Emf is the work done by a Source in moving a unit charge across a circuit. P.D. is energy dissipated by some component in a circuit (e.g. resistor). Its like energy going in:emf and energy going out:pd.
 

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