Question

How do i get a free pdf notes on introduction to electrical engineering

Answer 1

search for mit opencourseware...

Answer 2

Try going to here:

http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-01sc-introduction-to-electrical-engineering-and-computer-science-i-spring-2011/index.htm

A good bit of the instruction is via video but there is also plenty of pdfs which cover the same material.