Advertisements
Advertisements
प्रश्न
What is the use of the lever if its mechanical advantage is
- more than 1,
- equal to 1, and
- less than 1?
संक्षेप में उत्तर
Advertisements
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.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
What do you mean by the mechanical advantage of a lever?
Name the class to which the following lever belong:
A pair of scissors
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a beam balance
Name the machine to which the following belong:
Lemon crusher
Tick the most appropriate answer.
Which of the following is a Class II lever?
Answer the following in a word or two or in a sentence.
Which type of machine is used to squeeze a lemon?
Lemon juicer belongs to which type of lever? Why?
Match the following:
| 1. | Class I lever | a. | Wheelbarrow |
| 2. | Class II lever | b. | Seesaw |
| 3. | Class III lever | c. | Axe |
| 4. | Wedge | d. | Hockey sick |
Name the class of the lever shown in the picture below:
A ______ lever will always have M.A. > 1.
