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10Efficiency of a machine is always less than 100%.
Mechanical advantage (MA) is the ratio of load to effort.
Velocity ratio (VR) is always equal to mechanical advantage.
A machine with 100% efficiency is called an ideal machine.
Output work is calculated as Load × Effort distance.
Friction causes mechanical advantage to be less than velocity ratio.
Efficiency is expressed as the ratio of input work to output work.
Effort distance is the distance moved by the load.
If a lever has MA = 4 and VR = 5, its efficiency is 80%.
Input work is always equal to output work in real machines.
Percentage: 0%
Which of the following given statements is true?
Efficiency of a machine is the ratio of:
Mechanical Advantage is calculated by:
Velocity Ratio (VR) formula is:
A machine is called ideal when its efficiency is:
Friction in a machine affects:
Output work of a machine is calculated by:
If MA < VR, then efficiency is:
Efficiency can also be written as:
If a machine lifts a load with 0 friction, its efficiency is:
Work done by effort in a machine is called ______ work.
Work done by a machine on the load is called ______ work.
A machine with 100% efficiency is called ______ machine.
Due to ______, MA is always less than VR.
Efficiency is always less than ______%.
Efficiency is the ratio of ______ work to input work.
Mechanical Advantage (MA) is the ratio of ______.
______ Ratio is the ratio of ______ distance to Load distance.
Effort required to lift a load in a machine is called ______.
The ratio of output work to input work expressed in percentage is called ______.