Advertisements
Advertisements
प्रश्न
Stat the principle of an ideal machine.
Advertisements
उत्तर
An ideal machine is a machine whose parts are weightless and frictionless so that which there is no dissipation of energy in any manner. Its efficiency is 100%, i.e. the work output is equal to work input.
संबंधित प्रश्न
A scissor is a _________ multiplier
Two forces each of 5N act vertically upwards and downwards respectively on the two ends of a uniform metre rule which is placed at its mid-point as shown in the diagram. Determine the magnitude of the resultant moment of these forces about the midpoint.

State four ways in which machines are useful to us.
Name a machine to change the point of application of force ?
Name a machine which is used to multiply speed ?
Give an example for each of the following uses of a machine:
to obtain gain in force,
Shows a lemon crusher.
- In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E.
- Name the class of lever

Complete the following sentence :
Mechanical advantage = ___________ × velocity ratio
Under what condition will a set of gears produce a gain in speed
Mention the advantages of using a machine.
