Question

21. The grid in CRO a) Controls the number of electrons accelerated by anode b) Controls the brightness of the spot fall on the screen c) Both a and b d) Deflects the beam of electrons​

Answer 1

Answer:

C

Explanation:

The grid in CRO

- The purpose of the grid at negative voltage relative to the cathode that It acts as a brightness control

-The grid act as a brightness control in a Cathode Ray Oscilloscope that It controls the number of electrons being let through.

Answer 2

Answer:

Answer:

Both a and b is the correct answer

The grid in CRO

- The purpose of the grid at negative voltage relative to the cathode that It acts as a brightness control

-The grid act as a brightness control in a Cathode Ray Oscilloscope that It controls the number of electrons being let through.