True or false: resistance and resistivity

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Resistivity is a property of the material, not the sample's shape.

2. Statement is true

   Yes

   Statement

   Doubling the length of a wire doubles its resistance.

3. Statement is true

   No

   Statement

   Doubling the cross-sectional area doubles the resistance.

4. Statement is true

   Yes

   Statement

   Resistivity depends on temperature and pressure.

5. Statement is true

   No

   Statement

   Resistance and resistivity are the same quantity.

Explanation