What is (koli)? You are welcome to post questions here. Please state your school SUBJECT in the School Subject box so that a tutor in that field/subject will see it.
I'm not a physics tutor, but perhaps this article will help you:
http://www.popsci.com/adam-weiner/article/2008-09/when-carbon-electrical-conductor
What is reason of current passing through graphite
1 answer
2 answers