Wednesday, August 10, 2011

logic prob

 TTEC 4841 - Electrical and Electronics- Practical

10/08/2011 wednesday
start = 1.00pm finsh = 4.30pm

Today we learedn how to created a logic prob and how the RED LED work and the GREEN LED and explained why?

Question 1 why  do both red LED and the green LED go when connected to the battery? because its lighting up in a series circuit and one path for current flow

Question 2 why does the green LED go out when the probe contacts the battery? becasue the current flows one way so there is no ground conacted the green LED

Question 3 why does the red LED get brighter when the probe contacts the battery positive? the green LED blocks power so it sends it back to the red LED becasue there is only one resister.
current flows only through LED one

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