Electronics > Beginners
Support in learning the art of electronics
stoica adrian:
Hello all,
My name is Adrian and im 28 years old . I just received the AoE + Learning AoE and i want to study these books.
The plan for learning is to use the schedule used by the author Paul Horowitz and Winfield Hill.
There are 26 chapters ( 26 days of class in Learning the art of electronics, one chapter has Notes, Lab, Problems, and Suppliments) in the book. I will make one chapter per week ( 2 when its hard the chapter) , starting with one chapter per weekend using ,, Learning the art of electronics,, followed by five days focusing on the AoE. I am planning to respect autor schedule.
I want to do this because, the idea it is to start designing my own stuff. Design the schematic, create the layout pcb, test, debug, programming, as Dave says.
I created this topic for Q&A session coming in my help. If some question seemed stupid i am sorry
i am sorry fore my english.
rstofer:
That's an ambitious schedule but you clearly have a plan so go for it! You have come to the right place for help. There are some folks here who really understand the topic. I'm sure they will be glad to help.
Blaffetuur:
--- Quote from: stoica adrian on April 09, 2016, 02:14:54 pm ---1. i don't understand how to calculate the power dissipation of the resistance value shown. Or i don't understand the question.
--- End quote ---
They ask you to calculate the resistance you can put across a 5V supply so that the maximum powerdissipation in that resistor doesn't exceed .25W.
P=V*I and I=V/R => P=V*(V/R) = V²/R
plug in the numbers et voilà
orolo:
In your drawing you will measure essentially the 10 volts of the battery, and your 2 Volts measurement range will overflow. Instead of using the multimeter in parallel with the big resistor, try using it in series. What will happen?
MattSR:
The clue here is that the DMM has an internal resistance of 10Mohm, so by putting it in series with the "load" you are forming a voltage divider.
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