Electrical Circuit Theory and Technology by John Bird Pdf, It’s possible for an atom to eliminate an electron; the molecule, which can be nowcalled an ion, isn’t now electrically balanced, but is favorably chargedand is consequently able to pull an electron to itself from a different atom.
Electronsthat move from 1 atom to another can be known as free electrons and suchrandom movement can last indefinitely. But if a electrical pressureor voltage is put across any substance there’s a trend for electronsto transfer in a specific direction. This motion of free electrons, knownas ramble, represents an electrical current flow. So present is the speed ofmovement of cost.