Chapter 6.2: Resistance

True or False: most conductors have lower resistance at higher temperatures.

False; most have greater resistance at higher temperatures

The cross-sectional area of a resistor and resistance share a (direct, inverse) relationship, meaning that as the length of the resistor increases, the resistance (increases, decreases).

inverse; decreases

The SI unit for resistivity is ______.

ohms/meter

What equation is used to find the resistance of a resistor when given the resistor's resistivity, length, and cross-sectional area?

ρ= resistivity L= length A= cross-sectional area

What are the four characteristics of resistors that affect resistance?

1. Resistivity 2. Length 3. Cross-sectional area 4. Temperature

The length of a resistor and resistance share a (direct, inverse) relationship, meaning that as the length of the resistor increases, the resistance (increases, decreases).

Direct; increases

When increasing the cross-section area in a resistor, the number of pathways through the resistor increases, and there pathways are called ______.

conduction pathways