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  1. #1
    Junior Member Fanny's Avatar
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    When a mobile phone is being charged to a battery charger .?

    What is the 2 main energy conversion ? Is it Chemical Energy to Electrical Energy?
    AND

    When the fully charged phone rings, what is the energy conversion?

  2. #2
    Junior Member IvanJanevski's Avatar
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    When it is being charged: Electrical>>Chemical
    When it is being used: Chemical>>Electrical
    When mobile phone rings: Electrical>>Mechanic (sound)


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