WJEC AS Physics 2420QS · 2.2(b)
Potential difference and the volt
- Code
- 2.2(b)
- In
- 2.2 Resistance
- Topic
- 2 AS Unit 2: Electricity and Light
- Course
- AS Physics 2420QS
- Board
- WJEC
Codes and titles are read by a script from WJEC's published specification and have not been checked by a person. What each point covers is in the specification itself: WJEC’s specification.
Points in 2.2 Resistance
- 2.2(a) The definition of potential difference
- 2.2(b) Potential difference and the volt
- 2.2(c) I–V graphs for a filament lamp and a metal wire
- 2.2(d) Ohm's law, the equation V = IR and the definition of resistance
- 2.2(e) The ohm
- 2.2(f) Equations for electrical power
- 2.2(g) Resistance from electron–ion collisions
- 2.2(h) The resistivity equation
- 2.2(i) Resistance of metals and temperature
- 2.2(j) Collisions and heating in metals
- 2.2(k) Superconductivity and transition temperature
- 2.2(l) Superconducting transition temperatures of metals
- 2.2(m) High-temperature superconductors
- 2.2(n) Uses of superconductors