Write any 3 application dc motor and explain it briefly

they are used in the following

*elevators

*blowers and fans

*shears

an elevator is a system basically used for vertical transportation of goods or humans which uses power electronics converters and contollers and in doing that it converts DC electrical energy to mechanical energy which is a feature of a DC motor

a blower and a fan operates on the principle of a DC motor and uses an internal arrangement of magnets with opposing polarity

the type of DC motor used for shears is a cumulative compound DC motor

and 1and 1

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force