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प्रश्न
What is the use of the lever if its mechanical advantage is
- more than 1,
- equal to 1, and
- less than 1?
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उत्तर
- When the mechanical advantage is greater than 1, the lever serves as a force multiplier, enabling us to overcome a sizeable resistive force with a small effort.
- When the mechanical advantage is equal to 1, the lever is applied in a physical balance with equal lengths of both arms.
- When the mechanical advantage is less than 1, the levers are used to obtain the gain in speed. This implies that the load-displacement is greater than the displacement of effort.
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संबंधित प्रश्न
Fill in the blank:
In class II levers, the load is in between fulcrum and .........
Name the class to which the following lever belong:
a lemon squeezer
Name the class to which the following lever belong:
a crowbar
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a see-saw.
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a nutcracker
Name the machine to which the following belong:
Sugar tongs
A lever of length 100 cm has the effort of 15 kgf at a distance of 40 cm from the fulcrum at one end. What load can be applied at its other end?
Give one example of a class I lever where mechanical advantage is less than 1.
Classify the following into levers:
A catapult
Differentiate Class I lever and Class II lever.
