Physics
Related Questions
Select the incorrect statement:
- A machine always has efficiency less than 100%.
- The mechanical advantage of a machine can be less than 1.
- A machine can have mechanical advantage greater than the velocity ratio.
- A machine can be used as a speed multiplier.
The lever for which mechanical advantage is less than 1 has:
- Fulcrum at the mid-point between load and effort.
- Load between effort and fulcrum.
- Effort between fulcrum and load.
- Load and effort acting at the same point.
The Lever shown in the figure is:
- Class I lever
- Class II Lever
- Class III Lever
- None of these
Which class of levers have effort and load on the same side of fulcrum
- Class I lever
- Class II Lever
- Class III Lever
- Class II or class III Lever