Question

construction of an electric generator
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Answer 1

electric generator works on Fleming's right hand rule based on phenomenon of electric magnetic induction the experiment studies about generate induced current which is usually is very small this principle is also employed to produce large current for who uses uses in home and industry in an electric generator mechanical energy is used to rotate a conductor in magnetic field to produce electricity

electric generator kansas of rotating rectangular coil abcd place between two polls of permanent magnet the two ends of this koyla connected to touring sawan an hour to the inside of these things are made insulated the two conducting stationery brushes bhiwandi to express separately on the rings r1 and r2 respectively .

Answer 2

According to the Faraday's law of electromagnetic induction, whenever a conductor moves in a magnetic field EMF gets induced across the conductor. If the close path is provided to the conductor, induced emf causes current to flow in the circuit.

Now, Let the conductor coil ABCD is placed in a magnetic field. The direction of magnetic flux will be form N pole to S pole. The coil is connected to slip rings, and the load is connected through brushes resting on the slip rings.

Now, The coil is rotating clockwise, in this case the direction of induced current can be given by Fleming's right hand rule, and it will be along A-B-C-D.

As the coil is rotating clockwise, after half of the time period, the position of the coil will be as in second case of above figure. In this case, the direction of the induced current according to Fleming's right hand rule will be along D-C-B-A. It shows that, the direction of the current changes after half of the time period, that means we get an alternating current