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प्रश्न
Which class of lever has the mechanical advantage always less than 1? Give an example.
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उत्तर
The mechanical advantage of class III levers is always less than 1.
Example: a pair of tongs, sugar tongs, knife, forceps, etc.
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संबंधित प्रश्न
Describe three orders of levers giving an example of each. Draw neat diagrams showing the positions of fulcrum, load, and effort in each kind of lever.
Which class of lever has the mechanical advantage always more than 1? Give an example.
Name the class to which the following lever belong:
a pair of sugar tongs
Name the class to which the following lever belong:
a crowbar
How can you increase the mechanical advantage of a lever?
How does the friction at the fulcrum affect the mechanical advantage of the lever?
In a lever, the fulcrum is at one end at a distance of 30 cm from the load and effort is at the other end at a distance of 90 cm from the load. Find :
(a) the length of load arm,
(b) the length of effort arm, and
(c) the mechanical advantage of the lever.
Answer the following.
What is a Class I lever?
Answer the following in short.
What is the basis of the classification of levers?
second-order lever ______.
