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What is the role of CRT?(a) to emit electrons(b) to emit protons(c) to emit neutrons(d) to emit alpha particlesThe question was asked during a job interview.This interesting question is from Simple Oscilloscope in portion Oscilloscopes of Electrical Measurements

Answer»

The correct option is (a) to emit electrons

The explanation: Cathode ray TUBE forms the heart of a C.R.O. It is USED to emit electrons so as to STRIKE the phosphor screen to produce a SPOT for the visual display of the signals.



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