Get premium membership and access revision papers with marking schemes, video lessons and live classes.
  OR
Processing. Please wait.

 Form 4 physics cathode rays and cathode ray tube question and answers

The control grids in a Cathode Ray Oscilloscope (CRO) is used to control the brightness of the beam on the screen. How is this achieved?

 (0m 55s)
1214 Views     SHARE

|