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 1) A single battery cell produces 3.4 Volts and can provide a peak current of 5 Amps for 1 hour. The size of the battery is 2 cm by 1 cm by 1 cm. What is the Energy Density of the battery? 425 Wh/L 170 Wh/L 850 Wh/L 1750 Wh/L

 2) A Ni-Cad battery is to be used for a 14.4 Volt cordless drilling machine. The battery pack is composed of 12 cells of 1.2 V each, with each cell providing 1.4 Amp-hours. What is the capacity of the total battery pack (in Watt-hours)? 10.08 Wh 1.68 Wh 20.16 Wh 16.80 Wh

 3) A Ni-Cad battery is to be used for a 24 Volt cordless drilling machine. The battery pack is composed of 20 cells of 1.2 V each, with each cell providing 1.4 Amp-hours. If the drill draws an average current of 3 Amps, how long will the battery theoretically last before it is depleted? 28 minutes 24 minutes 100 minutes 7.5 minutes

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