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प्रश्न
Write a relationship between the mechanical advantage (M.A.) and velocity ratio (V.R) of an ideal machine.
लघु उत्तरीय
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उत्तर
For an ideal machine,
M. A. = V. R.
This is because an ideal machine has 100 % efficiency and no energy is lost due to friction.
η = `"M. A."/"V. R." xx 100 %`
Therefore, when η = 100 %, mechanical advantage equals velocity ratio.
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