How Did Ampere and Kirchhoff Shape Modern Electromagnetism?

[Jsizzle]

I need help with these scientists:

THIS ALL HAS TO RELATE TO ELECTROMAGNETISM

What did they discover (and a quick summary)
How did they discover it (what experiment did they have to go through)
What current invention has been based on what this person has discovered

The scientists:

Andre-Marie Ampere
Gustav Kirchhoff

 

[lackos]

sorry about redirecting you.

but i think a quick wikipedia or google search should get you your info