Electronic

Using CRO Function  1. Power switch  To switch on and off of the oscilloscope 2. Focus control To control the focus of the spot on the screen. 3. Intensity control To control the brightness of the spot on the screen. 4. X-offset5. Y-offset Y-offset moves the whole trace vertically up and down on the screen, … Read more

The cathode-ray oscilloscope (C.R.O.) consists of the following components: The electron gun. The deflecting plates. A fluorescent screen. The electron gun Parts of Electron Gun Function  Filament  To heat the cathode.  Cathode  Release electrons when heated by filament.  Grid  The grid is connected to a negative potential. The more negative this potential, the more electrons … Read more

Electron Gun (The electrons released by the cathode are accelerated by the accelerating anode and form a beam of electrons) If a high positive potential (anode) is placed in front of the heated metal, the emitted electrons will be accelerated and form a beam of electrons. The device is called an electron gun. The beam … Read more

Thermionic Emission Thermionic emission is a process of emission of charged particles (known as thermion) from the surface of heated metal. The charge particles normally are electrons. The rate of emission (number of electrons emitted in 1 second) is affected by 4 factors, namely the temperature of the heated metal,When the temperature of the metal … Read more

Cathode Ray Oscilloscope (Cathode Ray Tube Television) Cathode-ray tubes have become part of everyday life. They can be found in the screens of television sets and computer monitors. In the Physics laboratory, we use the cathode-ray tube in the oscilloscope to study waveforms. In SPM, you need to know How cathode ray is produced (Thermionic … Read more

Cathode Ray Oscilloscope Thermionic Emission Cathode Ray Structure of Cathode Ray Oscilloscope Using Cathode Ray Oscilloscope Uses of Cathode Ray Oscilloscope Measuring Potential Difference Measuring Short Time Interval Displaying Wave Forms Semiconductor Holes and Free Electrons Flows of Free Electrons and Holes Doping a semiconductor N-Type Semiconductor P-Type Semiconductor Summary Semiconductor Diodes Forward Bias and … Read more