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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
Give one example of a class I lever in a case where the mechanical advantage is less than 1?
Name the class to which the following lever belong:
a lemon squeezer
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a see-saw.
How does the friction at the fulcrum affect the mechanical advantage of the lever?
Answer the following.
What is a Class I lever?
Tick the most appropriate answer.
Which of the following is a Class II lever?
Answer the following in short.
What is the basis of the classification of levers?
Both a pair of scissors and a pair of pliers belong to the same class of levers. Name the class of lever. Which one has the mechanical advantage less than 1?
Which type of lever has a mechanical advantage always more than one? Give one example. What change can be made in this lever to increase its mechanical advantage?
Classify the following into levers:
A door
