railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Cathode Ray Oscilloscope
Select the most appropriate option to fill in the blank.
For a given accelerating voltage Ea and for particular dimensions of CRT, the deflection of the electron beam is _____ to the deflecting voltage.
1
independent
2
directly proportional
3
inversely proportional
4
square proportional