If the velocity ratio of a simple machine is more than that of a mechanical advantage, then which one of the following choices is the best suit?

Efficiency remains same

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Efficiency becomes zero

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Efficiency reduces

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Efficiency becomes greater than 80%

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Solution

The correct option is C
Efficiency reduces

Since, efficiency E of any simple machine is given by,

E = $\frac{M A}{V . R .}$

It is clear that, if V.R. > MA, then the efficiency is less or reduces for the given pair of load and effort.

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Similar questions

If the Velocity Ratio(V.R) of a simple machine is more than that of a Mechanical Advantage(M.A), then which one of the following choices is the best suit?

Q. Derive a relationship between mechanical advantage, velocity ratio and efficiency of a simple machine.

Select the incorrect statement :

(a) A machine always has the efficiency less than $100 %$ .

(b) The mechanical advantage of a machine can be less than 1.

(d) A machine can have the mechanical advantage greater than the velocity ratio.

Q. If an actual machine has a mechanical advantage

= 10

and velocity ratio

= 5

, What is its efficiency?

Q. How is the mechanical advantage related with the velocity ratio for an actual machine? State whether the efficiency of such a machine is equal to

1

, less than

1

or more than

1

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If the velocity ratio of a simple machine is more than that of a mechanical advantage, then which one of the following choices is the best suit?

The correct option is C Efficiency reduces Since, efficiency E of any simple machine is given by, E = MAV.R. It is clear that, if V.R. > MA, then the efficiency is less or reduces for the given pair of load and effort.

The correct option is C
Efficiency reduces

Since, efficiency E of any simple machine is given by,

E = $\frac{M A}{V . R .}$

It is clear that, if V.R. > MA, then the efficiency is less or reduces for the given pair of load and effort.