Conductivity vs Temperature Flashcards
Conductivity (σ) is inversely proportional to what?
Resistivity. σ ∝ 1/p
If Temperature (T) ↑ Increases in a Conductor, what happens to the conductivity (σ) and resistivity (p)?**
As Temperature (T) ↑ Increases, conductivity (σ) ↓ decreases and resistivity (p) ↑ increases
If Temperature (T) ↑ Increases in a Semi-Conductor, what happens to the conductivity (σ) and resistivity (p)?**
As Temperature (T) ↑ Increases, conductivity (σ) ↑ increases and resistivity (p) ↓ decreases **
Rank the following from Most to Least conductive: Semi-Conductors, Insulators, Conductors.**
(Most Conductive) 1. Conductor → 2. Semi-Conductor → 3. Insulator (Least Conductive)
Is metal a Conductor, Insulator, or Semi-Conductor?
Conductor
What are some examples of Semi-Conductors?
Ceramic e.g. Silicon (Si), Phosphorous (P), Boron (B)
What are some examples of Insulators?
Plastics, and Rubber
Increased ↑ Temperature (T) → ____ conducting charge ____ → more ________
Increased ↑ Temperature (T) → more conducting charge carriers → more conductivity