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13 cards from this deck
Flow of electrons through a wire
Electrons flow in one direction only
Electrons keep changing direction back and forth
Batteries, cells, solar panels
230V230V230V
50Hz50Hz50Hz
100 changes per second
Straight horizontal line
Wavy line (sine wave)
Mobile phones, laptops
Kettles, washing machines
How much energy the device uses each second
More energy used per second, costs more to run
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