What Are the Uses and Limitations of Electromagnets?

[Bez]

It would be great if someone is able to answer the following question (if possible)
What is electromagnet?
How is electromagnet used to generate electricity?
What happens during electromagnetism?
Advantages and disadvantages of using electromagnets.
Future developments in electromagnetism.
Thanks in advance. :)

 

[AngeloG]

What do you think the answers are to these? What do you feel electromagnetism is from your knowledge through research?

 

[Bez]

does it help in creating electricity?

 

[daniel_i_l]

http://en.wikipedia.org/wiki/Electromagnet