Question 11.C-A.69: In an oscilloscope, the cathode emits the electrons which ar...
In an oscilloscope, the cathode emits the electrons which are accelerated by the anodes. Explain the kind of voltages to be applied to the horizontal and vertical plates so that images formed on the defl ecting screen are
(a) horizontal line (b) vertical line
(a) To get horizontal line on the screen, an AC voltage should be applied to the vertical defecting plate and no voltage should be applied to horizontal defl ecting plates.
(b) To get vertical line, an AC voltage should be applied to the horizontal deflecting plate and no voltage to the vertical plates.
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