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The capacity of a cell is normally expressed in

  • A.watt hours per kilogram
  • B.volts
  • C.coulombs per second
  • D.ampere hours

Answer: D

It states the charge the cell can deliver, and multiplying by the nominal voltage gives the energy in watt hours. The figure depends on the rate of discharge, so the rate at which it was measured must be quoted with it.

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