1
answer
0
watching
168
views
23 Nov 2019

The electron beam in a cathode ray tube (TV or computer monitor) scans from the left to the right a horizontal line along the screen. When the scan of line is completed the beam is lowered to scan another line. After the most bottom line is scanned, the beam is brought back to the top line. In the US, which accepted the National Television Standards code system, there are 525 horizontal lines on TV which are scanned 30 times a second.Determine the direction of the magnectic fields which control both the horizontal and the vertical deflection of the electron beam.

For unlimited access to Homework Help, a Homework+ subscription is required.

Elin Hessel
Elin HesselLv2
23 Nov 2019

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in

Weekly leaderboard

Start filling in the gaps now
Log in