Why are slip rings used in a.c generators?

Question

anonymous · Answer

Read this: http://answers.yahoo.com/question/index?qid=20110723024902AAKse67

anonymous · Answer

i did read it, but they are basically telling they never really use slip rings in ac generators but we use slip rings in simple ac generators. 
it says that is converts it to a dc motor

masumanwar · Answer

slip ring is used to collect electricity produced

anonymous · Answer

Each arm in the coil of wire in a simple AC generator is attached to a slip ring. When the coil rotates, the slip rings mantain electrical contact withe the carbon brushes. If you're doing an  GCE 'O'Level/equivalent course, that answer should be enough

anonymous · Answer

Slip rings are required because.. in the generator, the coil is rotating.. but you don't want the wires connected to rotate, twist and tangle and break right? :D :D
so u use slip rings.. the rings will rotate along with the coil, and brushes will SLIP.. so metallic contact is maintained.. 


now if u don't want the output to ALTERNATE (change directions .. cause when u take a coil and rotate in between magnets, the current is going to keep changing directions at the same rate as ur coil rotates .. for example.. if coil does 50 revolutions per second, ur current generated will also change directions at 50 times per second or 50Hz .. anyways thats a detail) then, we don't use complete slip rings, we split them into halves. .
so that for every half rotation, the brushes change contacts with the halves, and the current which we get in the wires will not change directions.. 
if u need more detail.. feel free to ask.. with diagrams and al :P

anonymous · Answer

Thank you :)