Question

what is lever? draw diagrams of the three types of lever​

Answer 1

Answer:

A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. A lever is a rigid body capable of rotating on a point on itself. On the basis of the locations of fulcrum, load and effort, the lever is divided into three types. 

Answer 2

Answer:

The levers are of three kinds:

Class I levers are which have fulcrum in between the load and the effort.

Eg. See-Saw

Class II levers which have load in between the fulcrum and the effort

Eg. - Nut- Cracker

Class III levers which has effort in between the fulcrum and the Load

Eg. Forceps.