In a particular wire in a circuit, electrons flow in the +z direction. What is the direction of conventional current in the wire? Calculate the mobile electron density for nickel. A mole of nickel...

In a particular wire in a circuit, electrons flow in the +z direction. What is the direction of conventional current in the wire?

Calculate the mobile electron density for nickel. A mole of nickel has a mass of 59 g (0.059 kg), and one mobile electron is

released by each atom in metallic nickel. The density of nickel is about 8.8 grams per cubic centimeter, or 8.8 × 103 kg/m3.