electromagnetic induction:Electromagnetic Induction or Induction is a process in which a conductor is put in a particular position and magnetic field keeps varying or magnetic field is stationary and a conductor is moving. This produces a Voltage or EMF (Electromotive Force) across the electrical conductor.electrolysis:In chemistry and manufacturing, electrolysis is a technique that uses direct ELECTRIC current to drive an otherwise non-spontaneous chemical reaction. Electrolysis is commercially important as a stage in the separation of elements from naturally occurring sources such as ores using an electrolytic cell.electrode:An electrode is a conductor that is used to make contact with a NONMETALLIC part of a circuit. Electrodes are COMMONLY used in electrochemical cells (see Figure 1), semiconductors like diodes, and in medical devices.Electrorefining of metals:Electrorefining is a process in which materials, USUALLY metals, are purified by means of an electrolytic cell. ... An electric current is passed between a SAMPLE of the impure metal and a cathode when both are immersed in a solution containing cations of the metal.