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2015-11-20T15:26:10+05:30

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Fire alarm, electric bell, lighting using wind energy, lighting using thermal energy, etc.
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Best answer... :)
Ma'am, Help me also... :P
ask the question...!!
Ohk! I'll sure... :P
:) ;)
2015-11-20T19:33:23+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Simple electric motor, salt water energy, lemon energy, potato energy etc...
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