9 - Energy, Power And Resistance Flashcards
1
Q
Work done (2 equations)
A
W = VQ
W = emf x Q
2
Q
Difference between electromotive force and potential difference
A
emf - amount of energy supplied to one coulomb of charge
p.d. - amount of energy used by one coulomb of charge
3
Q
Potential difference
A
A measure of the transfer of energy by charge carriers
4
Q
Electromotive force
A
Work done ON the force carriers
The greater the emf the more energy per coulomb has been transferred into electrical energy
