Question

Why does the jar of a Mixer Grinder get hot when run for a few minutes?

Answer 1

The Jar of a mixer grinder get hot when run for few minutes due to friction & rotation of blades of grinder .during rotation of blade particles collides with wall. As we know that friction produce heat & sound which makes hot the wall of mixer grinder after few minutes of operation. 

Answer 2

because when jar of mixer grinder and mixer grinder are fixed then there will be more interlocking due to which there will be more friction...
due to more friction, more heat will be produced......
and mixer grinder will get hot.....
hope it helps you......
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