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Cathode Ray Oscilloscope:

• The cathode ray oscilloscope is an electronic test instrument , it is used to obtain waveforms when the different input signals are given.
• In the early days, it is called as an Oscillograph.
• The oscilloscope observes the changes in the electrical signals over time, thus the voltage and time describe a shape and it is continuously graphed beside a scale.
• By seeing the waveform, we can analyze some properties like amplitude, frequency, rise time, distortion, time interval and etc.                                                                                                                                              

  

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