ICSE Class 10 Answered
The following diagram is the simplified version of an electron gun which is an integral part of cathode ray tube. 'A' is a filament and 'B' is a metal cylinder (i) copy the diagram in your answer book. Draw a pair of plates P1 and P2 to apply electric field, a screen S and an enclosure. (ii) What are the functions of A, B, P1 and P2?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
(i) 
(ii) Function of A : When A is heated it produces thermions.
Function of B is to collimate the thermions to a fine beam or to accelerate the thermions. Function of P1 and P2 is to deflect the beam horizontally or vertically on the screen.
Answered by | 04 Jun, 2014, 03:23: PM
