<P> Electric discharge in gases occurs when electric current flows through a gaseous medium due to ionization of the gas . Depending on several factors , the discharge may radiate visible light . The properties of electric discharges in gases are studied in connection with design of lighting sources and in the design of high voltage electrical equipment . </P>
<P> Electric discharge in gases occurs when electric current flows through a gaseous medium due to ionization of the gas . Depending on several factors , the discharge may radiate visible light . The properties of electric discharges in gases are studied in connection with design of lighting sources and in the design of high voltage electrical equipment . </P>
why does a gas show a colour only when electricity is passed through the discharge tube
why does a gas show a colour only when electricity is passed through the discharge tube
due to ionization of the gas
due to ionization of the gas