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प्रश्न
What do you mean by the mechanical advantage of a lever?
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उत्तर
The mechanical advantage of a lever is equal to the ratio of the effort arm to the load arm. This is also called the principle of a lever.
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संबंधित प्रश्न
What is a lever?
Name the class to which the following levers belong:
a pair of pliers
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
State three differences between the three classes of levers.
Answer the following.
State the principle of levers.
Answer the following in a word or two or in a sentence.
Give one example of a machine used to multiply speed.
Give one example of a class I lever where mechanical advantage is less than 1.
What is the use of the lever if its mechanical advantage is
- more than 1,
- equal to 1, and
- less than 1?
Explain why the mechanical advantage of the class III type of lever is always less than 1.
