Conductivity vs Temperature Flashcards

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1
Q

Conductivity (σ) is inversely proportional to what?

A

Resistivity. σ ∝ 1/p

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2
Q

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

A

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

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3
Q

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

A

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

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4
Q

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

A

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

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5
Q

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

A

Conductor

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6
Q

What are some examples of Semi-Conductors?

A

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

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7
Q

What are some examples of Insulators?

A

Plastics, and Rubber

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8
Q

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

A

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

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