Conductivity vs Temperature

Question 1

Conductivity (σ) is inversely proportional to what?

Answer 1

Resistivity. σ ∝ 1/p

Question 2

If Temperature (T) ↑ Increases in a Conductor, what happens to the conductivity (σ) and resistivity (p)?**

Answer 2

As Temperature (T) ↑ Increases, conductivity (σ) ↓ decreases and resistivity (p) ↑ increases

Question 3

If Temperature (T) ↑ Increases in a Semi-Conductor, what happens to the conductivity (σ) and resistivity (p)?**

Answer 3

As Temperature (T) ↑ Increases, conductivity (σ) ↑ increases and resistivity (p) ↓ decreases **

Question 4

Rank the following from Most to Least conductive: Semi-Conductors, Insulators, Conductors.**

Answer 4

(Most Conductive) 1. Conductor → 2. Semi-Conductor → 3. Insulator (Least Conductive)

Question 5

Is metal a Conductor, Insulator, or Semi-Conductor?

Answer 5

Conductor

Question 6

What are some examples of Semi-Conductors?

Answer 6

Ceramic e.g. Silicon (Si), Phosphorous (P), Boron (B)

Question 7

What are some examples of Insulators?

Answer 7

Plastics, and Rubber

Question 8

Increased ↑ Temperature (T) → ____ conducting charge ____ → more ________

Answer 8

Increased ↑ Temperature (T) → more conducting charge carriers → more conductivity