With insulators there is a larger energy gap between the conduction band and the valence band and there are virtually no conduction electrons.A very large input of energy is needed to make the material conduct, but often the material will melt before it becomes conducting.
Insulators
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Specification: Edexcel Physics (8PH0), AS-level, Topic 3: Electric Circuits. Topic: Electrical Quantities.
More in Electrical Quantities
- Current-Voltage Graphs
- Resistivity
- Conduction and Drift Velocity
- Resistance and Temperature
- Semiconductors
- Current-Voltage Graph for Diodes
- Current-Voltage Graph for Thermistors and LDRs
- Superconductivity
All 18 lessons in Electrical Quantities · All Edexcel AS-level Physics topics