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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
Which class of lever has the mechanical advantage always less than 1? Give an example.
Name the class to which the following lever belong:
a pair of sugar tongs
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a see-saw.
Name the machine to which the following belong:
Beam balance
Name the machine to which the following belong:
Lemon crusher
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?
Answer the following.
Name the simplest of all types of machines.
Answer the following in a word or two or in a sentence.
Which type of machine is used to squeeze a lemon?
Answer the following in a word or two or in a sentence.
Give one example of a machine used to multiply speed.
Classify the following into levers:
A catapult
