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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
Give one example of a class I lever in a case where the mechanical advantage is equal to 1?
Name the class to which the following lever belong:
A pair of scissors
Name the class to which the following lever belong:
a beam balance
The diagram given below shows the three kinds of levers. Name the class of lever and give one example of the class.
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.
Name the simplest of all types of machines.
Answer the following.
State the principle of levers.
Answer the following in short.
Using a suitable example, describe how a machine acts as a force multiplier.
Classify the following into levers:
Wheel barrow
Differentiate Class I lever and Class II lever.
