Question

how do we draw Voltage versus Current graph for p-n junction diode?

Answer 1

http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html

this kind of answers your question other than for the p to n junction diode but that is the easy part left for you

Answer 2

freezingfire, I somehow referenced the wrong site. the gsu.edu is such an awesome website the answers are there for the taking.
Look at the index on the right side of the pg and do control+F for current

Answer 3

@Cristie Thanks