When the friction comes into action
between the two running parts of a machine, it results in the production of
________ .
जब किसी मशीन के दो चालू भागों के बीच घर्षण क्रिया में आता है, तो इसके परिणामस्वरूप ________ का उत्पादन होता है।
light
oil
energy
heat
heat
Heat is produced as the result of
energy loss due to the friction between two running parts of machine.
Hence, the correct option is (D).
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