State at least one function and the material used for the following parts of DC Motor.

1 Answer

Answer :

Part
Function
Material
Yoke
-Provides mechanical support for poles
-Acts as protecting cover for machine
-Provides path for magnetic flux
Cast Iron OR Cast Steel
Field Winding
-Produce magnetic field in which armature rotates 
Copper
Commutator
-Converts AC from armature to DC for generator
-Converts DC to AC for motor armature.
Copper segments insulated from each other by mica
Brushes
-To collect current from armature winding of generator & supply current to armature winding of motor
Carbon
Pole shoe
To spread the flux in air gap.
Cast Iron OR Cast Steel 
Pole core 
Provides mechanical support to field winding.
Cast Iron OR Cast Steel

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