Explain the purpose of an alkaline zinc /manganese dioxide cell
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The zinc powder provides more surface area for chemical reactions to take place, compared to a metal can. This lowers the internal resistance of the cell. To prevent gassing of the cell at the end of its life, more manganese dioxide is used than required to react with all the zinc.
Nominal cell voltage: 1.5 V
Self-discharge rate: <0.3%/month
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a dry cell is a type of electric battery commonly used for portable device. it was... of 1.5 volt, the same as alkaline cell( since both use the same zinc-magnese dioxide combination.
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