The cathode ray tube (C.R.T.) of a television uses magnetic fields for the deflection of the cathode rays. (i) What are cathode rays? (ii) Explain why...

      

The cathode ray tube (C.R.T.) of a television uses magnetic fields for the deflection of the cathode rays.
(i) What are cathode rays?
(ii) Explain why magnetic fields are preferred to electric fields in a television tube.

  

Answers


Kavungya
(i) Cathode rays – a stream/beam of fast moving electrons.
(ii) Magnetic fields give a wider deflection of the beam of electrons, hence it is possible to have a
wider screen with a relatively shorter tube than with electric fields.
(Wider deflection wider screen having shorter tube).
Kavungya answered the question on June 3, 2019 at 06:51


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