Advertisements
Advertisements
प्रश्न
A ______ lever will always have M.A. > 1.
विकल्प
Class I
Class II
Class III
Advertisements
उत्तर
A Class II lever will always have M.A. > 1.
Explanation:
In a Class II lever, the load is located between the fulcrum and the effort. This arrangement means the effort arm is always longer than the load arm. Since the Mechanical Advantage (M.A.) is calculated as the ratio of the effort arm to the load arm, the M.A. is always greater than 1, meaning it acts as a force multiplier.
APPEARS IN
संबंधित प्रश्न
What do you mean by the mechanical advantage of a lever?
Which class of lever has the mechanical advantage always more than 1? Give an example.
Name the class to which the following lever belong:
a nutcracker
How does the friction at the fulcrum affect the mechanical advantage of the lever?
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.
Tick the most appropriate answer.
A pair of scissors is an example of a/an
What is the use of the lever if its mechanical advantage is
- more than 1,
- equal to 1, and
- less than 1?
Explain why the mechanical advantage of a class II of lever is always more than 1.
Classify the things below.
| Sl. No | Examples | Class of Lever |
| 1. | Spade | |
| 2. | Seesaw | |
| 3. | Wheel barrow | |
| 4. | Plier | |
| 5. | Nail cutter |
Name the class of the lever shown in the picture below:
