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?
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.
APPEARS IN
संबंधित प्रश्न
Which class of lever has the mechanical advantage always less than 1? Give an example.
Give one example of a class I lever in a case where the mechanical advantage is equal to 1?
State three differences between the three classes of levers.
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 short.
What is the basis of the classification of levers?
Draw a labelled diagram of a class II lever. Give one example of such a lever.
Explain why the mechanical advantage of the class III type of lever is always less than 1.
Classify the following into levers:
Wheel barrow
Classify the things below.
| Sl. No | Examples | Class of Lever |
| 1. | Spade | |
| 2. | Seesaw | |
| 3. | Wheel barrow | |
| 4. | Plier | |
| 5. | Nail cutter |
Classify the following into levers:
Claw hammer
