This from Wikibooks:
Vexternal = E - Vinternal
Since V = IR:
Vexternal = E - IRinternal
You may also need to use the following formula to work out the external potential difference, if you are not given it:
Vexternal = IΣRexternal
You should also remember the effects of using resistors in both series and parallel circuits.
The reason I'm posting this here is to remind me to learn it !!
A blog worth reading on forward until the end! :) I really admire the wording in this blog, quite precise to the details but I just might change one or two things, never-the-less, bravo on well choiced words mate.. p.s.>> Thanks for sharing, I actually picked up some knowledge on this one :)
-Have an amazing day!
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