What happens to the resistivity of a superconductor as it approaches absolute zero?
Practice Questions
1 question
Q1
What happens to the resistivity of a superconductor as it approaches absolute zero?
Increases
Decreases
Becomes infinite
Becomes zero
The resistivity of a superconductor approaches zero as it reaches absolute zero.
Questions & Step-by-step Solutions
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Q
Q: What happens to the resistivity of a superconductor as it approaches absolute zero?
Solution: The resistivity of a superconductor approaches zero as it reaches absolute zero.
Steps: 5
Step 1: Understand what resistivity is. Resistivity is a measure of how strongly a material opposes the flow of electric current.
Step 2: Learn about superconductors. Superconductors are special materials that can conduct electricity without any resistance when they are cooled to very low temperatures.
Step 3: Know what absolute zero is. Absolute zero is the lowest possible temperature, which is 0 Kelvin or -273.15 degrees Celsius.
Step 4: Observe the behavior of superconductors as they are cooled. As a superconductor gets closer to absolute zero, its resistivity decreases.
Step 5: Conclude that at absolute zero, the resistivity of a superconductor becomes zero. This means it can conduct electricity perfectly without any loss.
