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Charging a battery .
We had a experiment on charging a battery . First we tried a light bulb , We charged the battery for 3 minutes and the light bulb lit for about .. 10 minutes ? Then the next day we charged the dead battery for 3 minutes and attached it to a motor and the motor ran for 7 minutes . Since the motor didn't run as long as the bulb that means the motor uses more energy . Motors use mechanical energy & light bulbs use light and heat energy !
Article posted March 23, 2012 at 09:09 AM •
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