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(i) M - Grid, N - Accelerating anode
(ii) The cathode is heated by filament and electrons are released from cathode by thermionic emission
(iii) This is to reduce collision, (hence ionization) with air molecules in the tube.
johnmulu answered the question on June 6, 2017 at 05:19
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Date posted: June 6, 2017. Answers (1)
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