level: Potential Difference (Voltage)
Questions and Answers List
level questions: Potential Difference (Voltage)
| Question | Answer |
|---|---|
| What is voltage? (put simply) | the energy given to electrical charge carriers in a circuit in order for them to move |
| what is electrical potential energy | the energy needed to move a charge against an electric field |
| what is electrical potential | the energy needed to move a charge from infinity to a certain point |
| what is potential difference? | a difference in electrical potential between two points |
| a cell has a voltage of 9V. What does this mean? | there's a difference of 9J per coulomb of charge between the positive and negative terminals of the cell |
| what is voltage measured in? | Volts - V OR Joules per Coulomb - JC-1 |