railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Cathode Ray Oscilloscope
In CRO, during retrace time the electron beam travel ______ from ______ of the screen.
1
Diagonally _____ top left to bottom right
2
Vertically _______ top to bottom
3
Horizontally ________ right to left
4
Vertically _____ bottom to top