Advertisements
Advertisements
प्रश्न
Complete the following sentence :
Mechanical advantage = ___________ × velocity ratio
Advertisements
उत्तर
Mechanical advantage = efficiency × velocity ratio
संबंधित प्रश्न
Draw a diagram to show how a single pulley can be used so as to have its ideal M.A= 2.
State four ways in which machines are useful to us.
Mechanical advantage (M.A.), load (L) and effort (E) are related as ______.
‘The force needed to push a load up an inclined plane is less than the force needed to lift it directly’ Give a reason.
The diagram below shows a claw hammer used to remove a nail :

(i) To which class of lever does it belong ?
(ii) Give one more example of the same class of lever mentioned by you in (i) for which the mechanical advantage is greater than one.
What is the purpose of a machine?
Complete the following sentence :
A scissors is a ___________ multiplier.
Under what condition will a set of gears produce a gain in speed
Name a machine which can be used to multiply force and change the direction of force applied.
Mention the advantages of using a machine.
