Exam-style question
Try this first
What is the effect of a material's resistivity on its resistance?.
- A.Higher resistivity leads to lower resistance
- B.Higher resistivity leads to higher resistance
- C.Resistivity has no effect on resistance
- D.Resistance is only affected by length and area
Model answer
What a good answer should say
- Higher resistivity leads to higher resistance
Explanation
Why this works
Resistivity (ρ) is a property of the material that affects resistance. According to the formula R = ρ(L/A), if the resistivity increases while length and cross-sectional area remain constant, the resistance will also increase.
Therefore, higher resistivity results in higher resistance.
Common mistake
No common mistake is linked to this question yet.