Question: Which of the following factors does NOT affect the resistivity of a material?
Options:
Temperature
Material type
Length of the conductor
Cross-sectional area
Correct Answer: Length of the conductor
Solution:
Resistivity is a property of the material and does not depend on the length or cross-sectional area.
Which of the following factors does NOT affect the resistivity of a material?
Practice Questions
Q1
Which of the following factors does NOT affect the resistivity of a material?
Temperature
Material type
Length of the conductor
Cross-sectional area
Questions & Step-by-Step Solutions
Which of the following factors does NOT affect the resistivity of a material?
Correct Answer: Length and cross-sectional area
Step 1: Understand what resistivity is. Resistivity is a property that tells us how much a material resists the flow of electric current.
Step 2: Know that resistivity depends on the type of material. Different materials have different resistivities.
Step 3: Recognize that resistivity does not change with the length of the material. For example, whether you have a long wire or a short wire made of the same material, the resistivity remains the same.
Step 4: Understand that resistivity also does not change with the cross-sectional area of the material. A thin wire and a thick wire made of the same material will have the same resistivity.
Step 5: Identify the factors that do affect resistivity, such as temperature and the material itself, but not length or cross-sectional area.
No concepts available.
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