Asked by Anonymous
I'm doing an internal of a battery resistance experiment but not familiar with this formula V = ε- Ir. What is the I in this formula?
Answers
Answered by
Damon
the current
if you have internal resistance r
and current i
then the voltage drop due to the internal resistance =i r
so the real battery voltage you see across your outside load is the battery resistance - that loss
if you have internal resistance r
and current i
then the voltage drop due to the internal resistance =i r
so the real battery voltage you see across your outside load is the battery resistance - that loss
Answered by
Damon
I mean the battery VOLTAGE - i r
Answered by
Anonymous
Is that why the battery warm up afterward ?
Answered by
Damon
Yes
Answered by
Damon
i^2 r is the power wasted on that internal resistance, which is indeed expressed as heat.
There are no AI answers yet. The ability to request AI answers is coming soon!