How Does Internal Resistance Affect Terminal Voltage in a Circuit?

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SUMMARY

The discussion centers on calculating the terminal voltage of a torch battery with an emf of 6.0V and an internal resistance of 1 Ohm when a load of 0.5 A is applied. The terminal voltage can be determined using the formula V = E - Ir, where E is the emf, I is the current, and r is the internal resistance. In this case, the terminal voltage is calculated as 6.0V - (0.5 A * 1 Ohm) = 5.5V. Additionally, participants are encouraged to mark threads as "[SOLVED]" once their queries are resolved to assist others in the forum.

PREREQUISITES
  • Understanding of electromotive force (emf)
  • Knowledge of internal resistance in electrical circuits
  • Familiarity with Ohm's Law
  • Ability to perform basic electrical calculations
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Homework Statement



A torch battery has an emf of 6.0V and an internal resistance of 1 Ohms. What is the voltage measured by a voltmeter connected across the terminals of the battery, when the battery is connected to a bulb that draws 0.5 A from the battery?

Anyways thanks I solved it.
 
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