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KITE VICTERS ONLINE CLASS 09-09-2021, , PHYSICS – X-PART-05 CLASS 23, , DC - Generator, Working principle : Electromagnetic Induction, Energy change : Mechanical Energy, Electrical Energy, , The main Parts of DC generator, * Field magnet (NS), * Armature (ABCD), * Split ring commutator (R1,R2), * Brushes(B1,B2), * If split ring commutator is used in a generator instead of slip rings, * Though AC current is produced in a DC generator with the help of split ring, commutator AC is converted into DC ., * The AC generated in the armature becomes DC in the external circuit as a result of the, change in contact between the ring and the brush at each half-rotation of the armature, * What are the similarities between the DC motor and a DC generator?, Permanent magnet., Armature, Brushes, Split rings, page 1, , www.apluseducre.blogspot.com or Whatsapp 9746544422
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KITE VICTERS ONLINE CLASS 09-09-2021, , * Connect the output of a small DC generator to a galvanometer and rotate the armature, continuously., How is the needle deflected?, * Same direction, Is the direction of current changing?, * No, Is the magnitude of current the same?, * No. Emf increases and decreases, Graphical representation of emf obtained from an AC generator, a, battery & a DC generator are given in the table, Write down the peculiarities of the emf ?, , page 2, , www.apluseducre.blogspot.com or Whatsapp 9746544422