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2015-09-04T07:12:22+05:30
It helps to keep us warm in winters by rubbing our palm
it overheats the machines
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2015-09-04T15:41:01+05:30

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Advantages of friction producing heat  is :-
1. it helps us keep warm by rubbing our palms together.
its disadvantage is:-
components of machines are worn due to heat produced due to friction between machines.

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