dc generator

 

 

Dcgenator is a device which is used toprodceelectricity by the magnetic effect of electricity.It is realy an ac generator it is converted to dc only by the arrange ment of split ring commutator.It has four important parts they are armature coil,field magnets,graphite brush and split ring commutator .They are arranged in a pattern that armature coil rotates between two field magnets.When they are ratated the magnetic flux will cut and an emf will be induced.This emf is collected using arrangement called split ring commutator.though it genarates +ve and-ve charges alternatively they are collected as same charges by the arrangement of split ring commutator.It's intencity also varies according to the cutting of magnetic flux.at first half cycle R1 get +ve charge and it come in contact with B1 and in secondr1geta-ve charge it will come in contact withb2.Then current in same direction is formed.

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