Who told you your home runs on 220 V?
In an electron gun of a hot cathode ray tube, a cathode is heated by a filament connected to a high tension battery. The electrons obtained from cathode are accelerated by a series of cylindrical anodes which are maintained at a high positive potential by means of a low tension battery.
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1 solution
In an electron gun of a hot cathode ray tube , a cathode is heated by a filament connected to a LOW tension battery . The electrons obtained from cathode are accelerated by a series of cylindrical anodes which are maintained at a HIGH positive potential by means of a low tension battery .