As the temperature approaches absolute zero (0 K), how does the electrical resistance curve of a normal (non-superconducting) metal differ from that of a superconductor?

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Physics · Superconductivity

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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The normal metal retains a non-zero residual resistance, whereas the superconductor drops to zero resistance at Tc.

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Answer 1

The normal metal's resistance increases exponentially, while the superconductor's resistance decreases linearly.

Answer 2

The normal metal retains a non-zero residual resistance, whereas the superconductor drops to zero resistance at Tc.

Answer 3

Both show an abrupt drop to zero resistance well before reaching 0 K.

Answer 4

The normal metal's resistance drops to zero at 0 K, while the superconductor retains residual resistance.

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