In physics, you can’t get something for nothing, but superconductors offer hope of someday breaking even. Figuring out how they work, and getting them to live up to their potential, has given scientists more than a few headaches in the years since they were discovered. Let’s see how much you know about these wonders of electromagnetism.
Question 1 of 20
What happens to current sent through a superconducting wire?
Question 2 of 20
Who discovered superconductivity?
Question 3 of 20
In what year did Onnes discover it?
Question 4 of 20
Approximately how cold do conventional superconductors have to get before they enter the superconducting state?
Question 5 of 20
Superconductors cease being superconductors if they are exposed to which of the following?
Question 6 of 20
Which of the following do NOT currently use superconductors?
Question 7 of 20
How well a material conducts electricity has to do with what factor?
Question 8 of 20
You can describe the structure of a typical conductor as which of the following?
Question 9 of 20
What of the following is NOT a source of resistance in a typical conductor?
Question 10 of 20
What happens to a superconductor when it is cooled to its critical temperature?
Question 11 of 20
What are Cooper pairs?
Question 12 of 20
What is the name of the theory that explains how conventional superconductors work?
Question 13 of 20
Today, superconductors that fit the BCS model are called "classical." What's the designation for superconductors that do NOT jibe with this theory?
Question 14 of 20
Which of the following elements become superconductors at low temperatures and pressures?
Question 15 of 20
Most superconductors are what type of material?
Question 16 of 20
Which type of superconductor exhibits perfect diamagnetism in every superconducting state?
Question 17 of 20
What is the vortex state?
Question 18 of 20
What year ushered in the age of high-temperature superconductors?
Question 19 of 20
Which of the following has NOT been used as a coolant for superconductors?
Question 20 of 20