Electro-Magnetic Induction

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Presentation transcript:

Electro-Magnetic Induction © D Hoult 2008

Simple a.c. generator

Simple a.c. generator

Simple a.c. generator

Simple a.c. generator

Simple a.c. generator

Simple a.c. generator

Simple a.c. generator Fleming’s right hand rule gives the sense of the current to be...

Simple a.c. generator

Simple a.c. generator Fleming’s right hand rule gives the sense of the current to be... which means that, at the instant shown in the diagram, terminal Q is the positive terminal of the generator

Simple a.c. generator Fleming’s right hand rule gives the sense of the current to be which means that, at the instant shown in the diagram, terminal Q is the positive terminal of the generator When the coil has turned through 180°, P will be the positive terminal so the generator gives us alternating current