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Superconductivity Discovery Quiz

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Questions and Answers

What did Kamerlingh Onnes discover in 1911 during low temperature measurements?

The electrical resistance of pure Hg increased at 4.2K

The electrical resistance of pure Hg remained constant at 4.2K

The electrical resistance of pure Hg dropped to zero at 4.2K (correct)

The electrical resistance of pure Hg became infinite at 4.2K

What happens to the resistive state of a superconductor in a magnetic field or at high transport currents?

It becomes more resistive

It becomes superconductive

It is restored (correct)

It remains unchanged

What is the essence of the Meissner effect?

The superconductor absorbs the magnetic field

The superconductor always expels the magnetic field (correct)

The superconductor attracts the magnetic field

The superconductor generates the magnetic field

What property of superconductors is more fundamental than zero resistance according to MCP | RIDHIMA GAHROTRA?

Diamagnetic property Signup and view all the answers

What do superconductors do to magnetic fields when T < Tc?

Push out magnetic fields and keep them out with constantly-flowing resistance-less currents Signup and view all the answers

What did Kamerlingh Onnes discover in 1911 during the first low temperature measurements?

The electrical resistance of "pure" Hg dropped to zero at 4.2K Signup and view all the answers

What is the essence of the Meissner effect?

The superconductor always expels the magnetic field Signup and view all the answers

What happens to the resistive state of a superconductor in a magnetic field or at high transport currents?

The resistive state is restored Signup and view all the answers

What property of superconductors is more fundamental than zero resistance according to MCP | RIDHIMA GAHROTRA?

Diamagnetic property Signup and view all the answers

What is the effect of superconductors on magnetic fields when T < Tc?

Superconductors push out magnetic fields and keep them out with constantly-flowing resistance-less currents Signup and view all the answers

Study Notes

Superconductivity Discoveries

In 1911, Kamerlingh Onnes discovered superconductivity during low temperature measurements.

Superconductor Behavior

A magnetic field or high transport currents can cause a superconductor to enter a resistive state.

Meissner Effect

The Meissner effect is the expulsion of magnetic fields from a superconductor when it is cooled below its critical temperature (Tc).

Superconductor Properties

According to MCP | RIDHIMA GAHROTRA, the more fundamental property of superconductors is perfect diamagnetism, which is more fundamental than zero resistance.

Superconductors and Magnetic Fields

When T < Tc, superconductors expel magnetic fields, a phenomenon known as the Meissner effect.

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Description

Test your knowledge of the discovery of superconductivity with this quiz. Learn about Kamerlingh Onnes' groundbreaking 1911 experiment that led to the observation of zero electrical resistance in mercury at low temperatures. Explore the restoration of resistive state in magnetic fields or high transport currents.