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Ni-Cad Battery
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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?
  
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)? 
  
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?
  

  


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