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23 Nov 2019

A battery has an emf of 7.5 V and 16 A of current flows through it. What power is this battery supplying?

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Elin Hessel
Elin HesselLv2
4 Mar 2019
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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?

 

Consider an automobile battery that has an emf of 12.0 V and a terminal voltage of 15.0 V while a current of 7.5 A is charging it. A What is the internal resistance, r, in ohms, of the battery?

A battery has a 6.00 V emf and an internal resistance of 0.600 ΩΩ. (a) What is the voltage across its terminals when the current drawn from the battery is 1.20 A? (b) What is the power supplied by the battery?

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