Question

Which of the following relations is wrong?
(a) Work input = Effort x Displacement of effort
(b) Work output = Load x Displacement of load
(c) Efficiency = Work input / Work output
(d) Mechanical advantage = Velocity ratio x Efficiency

May 5, 2024

Answer

(c) Efficiency = Work input / Work output

Reason — Efficiency is the ratio of useful work output to the total work input.

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