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Drift Velocity

The resistanc...

Question

The resistance of mercury becomes almost zero at temperature (in Kelvin) equal to:

A

4

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B

10

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C

20

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D

25

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Solution

The correct option is A 4
Most of the metals have their transition temperature (i.e. the temperature at which a substance starts to behave as super conductor) in the range of $2 - 5$ K.

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