Superconductivity Flashcards

1
Q

What is a superconductor?

A

A wire or device made of a material that has zero resistivity at and below a critical temperature

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2
Q

What happens when a current passes through a supercondudctor?

A

There is no p.d. across it because there is no resistance (V=IR)

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3
Q

What heating effect does current have in a superconductor?

A

Current has no heating effect in a superconductor because there is no p.d.

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4
Q

What happens is a superconductor material’s temperature is raised above its critical temperature?

A

It loses it superconductivity - the resistance rises

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5
Q

What is commonly the critical temperature for superconductors?

A

0 Kelvins (absolute zero)

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