A type I superconductor is1. A conductor of infinite conductivity at all temperatures.2. A conductor with very large conductivity below a critical temperature.3. A material showing susceptibility 1 below critical temperature.4. A perfect conductor having conductivity drastically reduced by a critical current.

A type I superconductor is1. A conductor of infinite conductivity at a

1.	A type I superconductor is1. A conductor of infinite conductivity at all temperatures.2. A conductor with very large conductivity below a critical temperature.3. A material showing susceptibility 1 below critical temperature.4. A perfect conductor having conductivity drastically reduced by a critical current.
A.	1, 2 and 3 only
B.	2, 3 and 4 only
C.	1, 2 and 4 only
D.	1, 2, 3 and 4
Answer» C. 1, 2 and 4 only

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