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Machines — Physics STD 10 — Question

ICSE BoardEnglish MediumSTD 10PhysicsMachines2 Marks
Question
What do you understand by an ideal machine?
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Answer

An ideal machine is a machine whose parts are weightless and frictionless so that which there is no dissipation of energy in any manner. Its efficiency is 100%, i.e. the work output is equal to work input.

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