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Posted by on Monday, February 18, 2013 at 7:58pm.

the energy that can extracted from a storage battery is always less than the energy that goes into it while it is being charged. why?

  • Physics - , Monday, February 18, 2013 at 8:15pm

    Perpetual motion is impossible. If you could get more energy out of a battery than you put in, you could run a perpetual motion device.

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