A metallic wire has a diameter of 4.12mm When the current in the wire is 8.00 A, the drift velocity is 5.40x10^-5 m/sWhat is the What is the density of free electrons in the metal?I keep getting 0.1779, is my decimal place wrong, what the heck am I doing wrong here?
you have to know the metal, each metal has different electron dissplacement, gold the best, silver, copper then aluminum,
one is as insulating as 30 feet of rock the other only as insulating as 11 feet of rocki am not sure this is as much related to the density of the insulation as to the material.
