simple electrical circuit diagram light bulb battery power electricity |
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| navigate by keyword : text presentation organ number multimedia logo line lighting label gadget font drawing document diagram circle cartoon brand circuit electrical light bulb battery power electricity schematic physics science project energy voltage current symbol vector graphic design icon isolated white black positive negative terminal connection wire source supply engineering education technology simple basic component device element sign concept |
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| Simple electrical circuit diagram light bulb battery power electricity schematic physics science project |
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