| Electric currents | |
| Electric potential[] difference, current and resistance. | |
| Electric potential[] difference. | |
| 5.1.1 | Define electric potential[] difference. |
| 5.1.2 | Determine the change in potential energy[] when a charge moves between two points at different potentials. |
| 5.1.3 | Define the electronvolt. |
| 5.1.4 | Solve problems involving electric potential[] difference. |
| Electric current and resistance. | |
| 5.1.5 | Define electric current. |
| 5.1.6 | Define resistance. |
| 5.1.7 | Apply the equation for resistance[] in the form R = ρL/A where ρ is the resistivity[] of the material of the resistor. |
| 5.1.8 | State Ohms law. |
| 5.1.9 | Compare ohmic and non-ohmic behaviour. |
| 5.1.10 | Derive and apply expressions for electrical power[] dissipation in resistors. |
| 5.1.11 | Solve problems involving potential difference, current and resistance. |
| Electric circuits. | |
| 5.2.1 | Define electromotive force (emf). |
| 5.2.2 | Describe the concept of internal resistance[]. |
| 5.2.3 | Apply the equations for resistors in series and in parallel. |
| 5.2.4 | Draw cricuit diagrams. |
| 5.2.5 | Describe the use of ideal ammeters and ideal voltmeters. |
| 5.2.6 | Describe a potential divider. |
| 5.2.7 | Explain the use of sensors in potential divider[] circuits[]. |
| 5.2.8 | Solve problems involving electric circuits[]. |
Resistance
Ohm's law
Alternating currents
Oscilloscope
Electrical basics - interactive revision
Multiple choice questions on current electricity
Northallerton College web site
Glossary