Superconductivity
Physics ⇒ Electricity and Magnetism
Superconductivity starts at 11 and continues till grade 12.
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See sample questions for grade 11
A superconductor has a critical temperature of 10 K. If it is cooled to 5 K, what is its electrical resistance?
Describe one way in which superconductors are used in medical technology.
Describe the difference between Type I and Type II superconductors.
Describe what happens to the magnetic field inside a superconductor below its critical temperature.
Explain the Meissner effect in superconductors.
A superconductor has a critical temperature of 10 K. If it is cooled to 5 K, what is its electrical resistance?
A superconductor is cooled below its critical temperature and a current is set up in a closed loop. What happens to the current? (1) It gradually decreases (2) It remains constant indefinitely (3) It increases (4) It oscillates
A wire made of a superconducting material is cooled below its critical temperature. If a voltage is applied, what is the resulting current? (1) Zero (2) Infinite (3) Finite and constant (4) It depends on the material
A superconductor is cooled below its critical temperature and a current is set up in a closed loop. What happens to the current? (1) It gradually decreases (2) It remains constant indefinitely (3) It increases (4) It oscillates
A wire made of a superconducting material is cooled below its critical temperature. If a voltage is applied, what is the resulting current? (1) Zero (2) Infinite (3) Finite and constant (4) It depends on the material
Which of the following is a correct statement about the Meissner effect? (1) It occurs only above the critical temperature (2) It is the expulsion of magnetic fields from a superconductor (3) It increases resistance (4) It is unrelated to superconductivity
Which of the following is a high-temperature superconductor? (1) YBa2Cu3O7 (2) Aluminum (3) Tin (4) Gold
The critical magnetic field is the maximum magnetic field a superconductor can withstand before it becomes _______.
The critical temperature (Tc) of a superconductor is the temperature ______ which it becomes superconducting.
The Meissner effect demonstrates that superconductors are perfect _______.
The phenomenon of zero resistance in superconductors was first observed in the year ______.
State True or False: All materials become superconductors at sufficiently low temperatures.
True or False: Superconductivity can occur in both metals and ceramics.
True or False: Superconductivity was first discovered in mercury.
True or False: Superconductors can be used to create very strong electromagnets.
