How is an alternating current produced?

Answer 1

EMF is induced in a coil when it is rotated in magnetic field. The magnetic field is obtained in the space between N Pole and S Pole of a magnet. coil is kept on shaft and it is rotated. To take out the current from the coil, two slip rings made of brass are kept on the shaft. The slip rings are insulated from each other and from the shaft. Carbon brushes are placed on the slip ring. EMF is available across these brushes. Load is connected across the brushes.

This is called single phase type alternator or AC Generator. In practice three phase type alternator is used.

In alternator, used in power stations, armature is kept stationary and field is rotated.

Answer 2

Wizardry and magic.

answ2. But really, moving a conductor through a magnetic field will produce an electron flow in the wire coil. (And inversely, the flow of electrons in a circuit will produce a magnetic field.)

Answer 3

i guess only those who study electrical science will ask these questions

but why do they ask this kind of stupid questions. its basic electricals

it depends on the design whether the generator produces AC or DC

generally reffered AC--- Alternator DC----- generator

to produce AC supply a simple design change in generator (DC) will do it

in the place of split rings (DC generators) place a slip rings it'l produce AC

coz there wont be any change in polarinty even though armature rotates as output conductors stick to the same slip ring throuh carbon brushes and produces a polarity change called ac

Answer 4

it doesnt