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Physics
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30 Dec 2020

Ten identical batteries each of emf 2 V are connected in series to an 8Ω resistor. If the current in the circuit is 2 A, then the internal resistance of each battery is:

Booster class
Electricity and Magnetism
Skill
Understanding DC Series circuit
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Ankit Lal
Ankit LalLv10
30 Dec 2020
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A real battery is not just an emf, we can model a real 1.5V battery as a 1.5 V emf in series with a resistor known as the internal resistance. A typical battery has 1.0 Ω internal resistance due to imperfections that limit the current through the battery. When there's no current through the battery, and thus no voltage drop across the internal resistance, the potential difference between its terminals is 1.5 V, the value of the emf. Suppose the terminals of this battery are connected to a 3 Ω resistor.

what fraction of the battery's power is dissipated by the internal resistance?

 

A variable resistor R is connected across the terminals of a battery. FIGURE shows the current in the circuit as R is varied. What are the emf and internal resistance of the battery?

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