E.m.f and Internal Resistance Flashcards
1
Q
What is internal resistance?
A
The resistance of the battery or cell providing potential difference.
2
Q
What is electromotive force?
A
Electromotive force is amount of work done per coulomb of charge measured in volts.
3
Q
what is the equation of emf?
A
emf = v +Ir
4
Q
How to calculate the total emf of a cells in series?
A
emf total = emf1 + emf 2 +…
5
Q
How to calculate total emf of cells in parallel?
A
emf total = emf1 = emf 2 =…
