Question

Superconductive materials are usually most effective _____.

at very low temperatures
at very high temperatures
when a magnetic field is applied
under high pressures

Answer 1

Superconductive materials are usually most effective at very low temperatures.

Answer 2

Answer;

At very low temperatures

Superconductive materials are usually most effective at very low temperatures.

Explanation;

-Superconductors only work and are very effective at very low temperatures. Therefore they have to be kept very cold with liquid nitrogen or liquid helium.

-In these materials called superconductors, the electric resistance is equal to zero.  At zero resistance, the material conducts current perfectly. This is somehow incomprehensible since the flaws and vibrations of the atoms is supposed to result to resistance in the conductor when the electrons flow through it.