Conductors|Some Facts

The given table lists some materials as conductors or insulators. Which is listed incorrectly in the table?

Can we say that all free electrons move in the same direction in a conductor when some potential difference is applied across it ?

A current carrying conductor is connected with a cell, after some time temperature of conductor is increased by 1 unit. The percentage change in its resistivity is (Here alpha is temperature coefficient of resistivity)

Conductor|Electric Field Inside Conductor Is Zero|Net Charge Inside Conductor Is Zero|Conductor As Equipotential Surface|Electric Field On Surface Of Conductor

Conductor and its properties|Solid spherical conductor|Conductor with multiple shells|Parallel conductor

What is an electrical conductor ? Give some examples.

Some charge is being given to a conductor. Then its potential : -

The fact that the conductance of some metals rises to infinity at some temperature below a few Kelvin is called