General Machine Theory

Do your own homework

Just using a web search engine to look for "electrical insulation cotton" got

http://www.techlib.com/reference/insulation.html

- amongst a long list, some no-doubt useful

You have to search with different words and combinations.

No doubt a similar search for your other items will work.

Lucky you, when I was at college, one had to find the right book and borrow a copy. That method still works.......

1)cotton

2) paper

3) enamel

4) silicon

"i would appreciate any help with this topic my fellow engineers"

You don't get to say "fellow engineers" until you graduate and become one!

Side note, we all somehow managed to finish our course work without internet forums to ask for suckers to do our work for us. So we know it can be done.