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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
Name the class to which the following lever belong:
a lemon squeezer
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
The diagram given below shows the three kinds of levers. Name the class of lever and give one example of the class.
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.
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?
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.
Differentiate Class I lever and Class II lever.
