Question
A battery with an emf of 1.5 V has internal resistance r. When the battery is connected across an external resistor R, the terminal voltage
A battery with an emf of 1.5 V has internal resistance r. When the battery is connected across an external resistor R, the terminal voltage is 1.4 V, and the current is 0.18 A.
What is the value of the external resistor R?
What is the internal resistance r of the battery?
How much energy is dissipated in the battery's internal resistance in 3.6 minutes?
A second identical battery is added in series, and the combination is put across an external resistor R = 25 ?.
What is the resulting current?
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Physics
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
2nd edition
77339681, 978-0077339685
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