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21 September, 21:43

How might circuits be used to make a device or a home more energy efficient

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  1. 21 September, 22:14
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    Circuits can be designed to turn on lights when a person enters a room and to turn them off after people have left. They can regulate and control heating and cooling systems to create desired air temperatures in houses and buildings. They can tell your computer when to turn off the screen if it has not been used in a while
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