Exercises - Form IV - THERMIONIC EMISSION - ACTIVITY 2


ACTIVITY 2
1.      What are cathode rays?
2.      Sketch a diagram of cathode – ray – tube and label its parts and describe functions of each part.
3.      Describe how cathode rays are produced in a cathode ray- tube.
4.      Give five properties of cathode rays.
5.      Give three (3) uses of CRO

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