Question

Relation between current ionic conductivity and temperature

Answer 1

In atoms all electrons have thermal vibrations. That is electrons take the heat energy from surroundings and start to vibrate.

When a potential is applied these thermal vibrations restrict the electrons to move in the direction of current. The higher the temperature we give, the gigher it vibrates and gives less conductivity.

This is how superconductors are formed. A normal conductor is supercooled to very low temperature(say some -273°C).so there is no heat and no energy for electrons to vibrate. they remain at rest. And now when potential is applied there is free flow of electrons, without any vibrations.