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प्रश्न
The lever for which the mechanical advantage is less than 1 has :
पर्याय
Fulcrum at mid-point between load and effort.
Load between effort and fulcrum.
Effort between fulcrum and load.
Load and effort acting at the same point.
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उत्तर
Effort between fulcrum and load.
Reason:
Levers, for which the mechanical advantage is less than 1, always have the effort arm shorter than the load arm.
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संबंधित प्रश्न
Class II levers are designed to have ______.
Define Lever
Which type of levers have mechanical advantage always more than 1? Give reasons.
Give three examples for leavers of 1st order.
Give three examples for leavers of the third order.
The following belong to which class of lever?
Human-arm
Shears, used for cutting metals and scissors used for cutting clothes are both examples of levers of the first order. However, whereas the shears always have short blades and long handles, the scissors often have blades much longer than the handles. Explain, why this is so?
The following are an example of levers. State the class of lever to which each one belongs giving the relative positions of Load (L), Effort (E), Fulcrum (F):
(i) Scissors (ii) Sugar tongs (iii) Nutcracker (iv) Pliers.
When we want to use a machine as a force multiplier, which class of lever should we preferably use? Give a simple diagram of such a lever.
What is a first-order lever?
