Internal resistance of cells in parallel

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SUMMARY

The equivalent internal resistance of three identical cells in parallel is calculated by dividing the internal resistance of one cell by three. This principle applies specifically to identical cells, where the electromotive force (emf) remains constant at that of a single cell. The discussion clarifies that while the resistance decreases with parallel configuration, the emf does not change, leading to a straightforward calculation of equivalent resistance.

PREREQUISITES
  • Understanding of electrical resistance and Ohm's Law
  • Familiarity with the concept of electromotive force (emf)
  • Knowledge of parallel circuit configurations
  • Basic principles of battery operation and internal resistance
NEXT STEPS
  • Study the effects of internal resistance on battery performance
  • Learn about calculating equivalent resistance in complex circuits
  • Explore the impact of non-identical cells in parallel configurations
  • Investigate the relationship between emf and load in battery systems
USEFUL FOR

Electrical engineers, physics students, and anyone involved in designing or analyzing battery systems and parallel circuits.

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I know, as a matter of fact, that the equivalent resistance of three identical cells in parallel is equal to the internal resistance devided by 3. When we are concerning simply 3 equal resistors in parallel, I know that the outcome resistance is what. But when it comes to three cells with internal resistance, I don't understand why the emf is that of one cell and the resistance could be resolved so simply . Would anyone please give me a thorough explain on that? Much obliged!
 
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