What happens when mechanical advantage and velocity ratio are equal of a machine?

Velocity ratio is also defined as velocity of effort to the velocity of load. Efficiency (η)=M. A. Thus, the mechanical advantage of the machine is equal to the product of its efficiency and Velocity ratio.

Which term is constant mechanical advantage of velocity ratio?

The mechanical advantage(M.A) of a real machine is always less than itsvelocity ratio(V.R) becausemechanical advantage decreases due to the friction and weight of moving parts of the machine whereas thevelocity ratio remains constant. …

What is the effect on velocity ratio efficiency and mechanical advantage of a machine in presence of friction?

If there is friction between the parts of simple machine then it will affect the efficiency of machines and thus the mechanical advantage of machine will be reduced.

What is the relationship between Ma and VR for?

Efficiency = Mehanical Advantage / velocity Ratio. For ideal machine efficiency = 1. Hence M.A = V. R.

What is the relationship between Ma VR and η?

The correct relationship between the mechanical advantage (M.A.), velocity ratio (V.R.) and efficiency (η) is: M.A. = η x V.R.

How is velocity ratio constant for a machine?

The ratio of input speed to the output speed is called the velocity ratio (VR) of a machine. For a given machine, the velocity ratio always remains constant and in ideal conditions, it will be equal to the mechanical advantage of the machine. The velocity ratio is a constant quantity.

What does velocity ratio depend on?

porosity
(a) Velocity ratio depends on porosity.

Why velocity ratio is constant for a machine?

The parts of a machine are connected so as to give an output motion from a given input motion. For a given machine, the velocity ratio always remains constant and in ideal conditions, it will be equal to the mechanical advantage of the machine. The velocity ratio is a constant quantity.

What is the relationship between mechanical advantage velocity ratio and efficiency of these which term will not change for the machine of a given design?

Mechanical advantage is equal to the product of velocity ratio and efficiency. For a machine of a given design, the velocity ratio does not change.

Can a machine have mechanical advantage greater than velocity ratio?

R. where M.A. is the mechanical advantage and V.R. is the velocity ratio. In an actual machine, efficiency is always less than 1. So, the mechanical advantage is always less than the velocity ratio for an actual machine.

What factors affect mechanical advantage of a machine?

Leverage, gear ratios, pulley sizes, cylinder size ratios, screw pitch… The farther the applied effort travels in relation to the load, the greater the MA, but the longer the task takes.

Why is the mechanical advantage always less than the velocity ratio?

Answer The mechanical advantage (M.A) of a real machine is always less than its velocity ratio (V.R) because mechanical advantage decreases due to the friction and weight of moving parts of the machine whereas the velocity ratio remains constant. Answer verified by Toppr Upvote (6)

How do you increase the mechanical advantage of a lever?

For a lever, mechanical advantage is Effort arm/Load arm. So mechanical advantage can be increased by increasing the effort arm or decreasing the load arm. But if the velocity ratio remains constant, and initially it is equal to the mechanical advantage, then later it will become lesser than the mechanical advantage.

How to increase the mechanical advantage of an electric motor?

So mechanical advantage can be increased by increasing the effort arm or decreasing the load arm. But if the velocity ratio remains constant, and initially it is equal to the mechanical advantage, then later it will become lesser than the mechanical advantage. How is it possible?

What is the difference between gear ratio and mechanical advantage?

For rotary devices the term Gear Ratio is used to define the Mechanical Advantage. The term Mechanical Advantage is used to describe components that include translation. The analysis below shows how one calculates the Gear Ratio and Mechanical Advantage of a Power Transmission component.