Friday, July 20, 2012
A magnetic switch
Some device free electricity gorgeous, I want to find: magnetic switch Year peak explainthatstuff This switch is basic, inexpensive and clever reed sensors in burglar alarm (on doors and windows) are utilised. Push the two metal contacts or outdoors (based on the version of the switch), when a magnet nearby. Devices such as these also alter "clamshell" on phones and laptops and off when you open and close our report on such as Reed switches function . Our pictures are licensed below a
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