BRAINCAKETemperature and Resistance
If the temperature is increased, the metal ions vibrate more. There are more collisions between the electrons and positive ion and it is harder for current to flow.
In a conductor, the resistance increases with temperature as the atoms vibrate more.
Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
Key terms in this lesson
- density
- The mass per unit volume of a substance.
- energy
- The capacity of a system to do work.
- resistance
- The ratio of the potential difference across a component to the current through it.
- thermistor
- A resistor whose resistance changes significantly with temperature, typically made from a semiconductor.
- light dependent resistor
- A resistor made from a semiconductor material whose resistance decreases as the intensity of light on it increases.
More in Electricity
- Electromotive Force
- The Electron Gun
- Resistance
- Ohm's Law
- IV Graphs
- Diodes
- Resistivity
- Temperature and Number Density
All 30 lessons in Electricity · All OCR AS-level Physics topics