Electromotive Force and Potential Difference Flashcards
1
Q
Potential Difference
A
The potential difference between two points in a circuit is the energy lost by one coulomb as it moves from one point to the other
2
Q
Unit of Potential Difference
A
The unit of potential difference is the joule per coulomb ( J / C ) which is also called the volt
3
Q
Voltmeter
A
A voltmeter is always connected in parallel with the part of the circuit across which the p.d. is to be measured
4
Q
Electromotive Force
A
A voltage when applied to a circuit is called an emf
