Question

2 AAA-size lithium batteries are connected in series in a flashlight. Each battery has 3.5      ...

2 AAA-size lithium batteries are connected in series in a flashlight. Each battery has 3.5

      volt and 4- Amp-hour capacity. If the flashlight is connected to a light bulb with 10 Ohms

       resistance. How long does it take to drain the batteries?

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Answer #1

Concept - find the energy in each battery and then find the current through the resistor and hence find the required time to drain the batteries as shown below***************************************************************************************************
This concludes the answers. If there is any mistake or omission, let me know immediately and I will fix it....

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