mrchetsteadman Posted November 15, 2005 Share Posted November 15, 2005 Okay, maybe because this is finals week and I only had about 6 hours of sleep in the last 3 days, but I am confused. Can you guys do this ONE problem for me, I will do the rest. I just need a visual. Find and write out in your own words an explanation for each of the following electronics terms and devices. If it is an electronic device, include the standard way(s) of drawing the circuit element in a schematic. For those terms that are electronic quantities, be sure to include the units on the quantity, and the variable that is used to represent it. 1. Resistor *Thanks in advance" Link to comment Share on other sites More sharing options...
rumbleph1$h Posted November 15, 2005 Share Posted November 15, 2005 resistor: an element who's primary function is to induce resistance to current. a larger resistance indicates greater ability to oppose current flow. by ohm's law R = V/I = 1V/A = 1 ohm. a resistor with resistance R and a current I flowing through it will have a voltage drop of IR across it. conventional circuit representation for a fixed resistor: Link to comment Share on other sites More sharing options...
_sphinx_ Posted November 15, 2005 Share Posted November 15, 2005 resistor: an element who's primary function is to induce resistance to current. a larger resistance indicates greater ability to oppose current flow. by ohm's law R = V/I = 1V/A = 1 ohm. a resistor with resistance R and a current I flowing through it will have a voltage drop of IR across it.conventional circuit representation for a fixed resistor: 586812448[/snapback] +Resistance increases as temperature increases in metals (good conductors), and it decreases as temperature increases in Semi-Conductors. what else.....oh yeah, its measured in ohms (sign is capital letter omega: Ω) Link to comment Share on other sites More sharing options...
mrchetsteadman Posted November 15, 2005 Author Share Posted November 15, 2005 ^^Thanks! I tried to stay up all night to do this but it didn't work. :( But I have 25 of these to do. Link to comment Share on other sites More sharing options...
mrchetsteadman Posted November 15, 2005 Author Share Posted November 15, 2005 (edited) Man, this is gonna sound dumb as hell... I was sitting here wondering WHY none of this stuff makes sense to me. It has nothing to do with my major! My instructor gave me the wrong sheet. My friend just called and told me what to do. It has terms like "Information Technology" & "Operating Systems". Edit: Oh yeah, thanks to everyone that helped. I really appreciate it. Edited November 15, 2005 by C-Squarez Link to comment Share on other sites More sharing options...
Daem0hn Posted November 16, 2005 Share Posted November 16, 2005 ^ hahaha thats rather amusing :p was it an assignment or just a tutorial worksheet? Link to comment Share on other sites More sharing options...
mrchetsteadman Posted November 16, 2005 Author Share Posted November 16, 2005 ^ hahaha thats rather amusing :p was it an assignment or just a tutorial worksheet? 586815754[/snapback] It was an assignment. A final project actually. They gave us 25 definitions to look up and do all sorts of other things. The one that I was supposed to do was VERY easy. I finished it quickly because I know it all already (sorta). Now I have one more project to do by the morning. :( 2 down, 1 to go... Link to comment Share on other sites More sharing options...
Daem0hn Posted November 16, 2005 Share Posted November 16, 2005 ahh ****, good luck :s :pinch: what major? Link to comment Share on other sites More sharing options...
mrchetsteadman Posted November 16, 2005 Author Share Posted November 16, 2005 ahh ****, good luck :s :pinch: what major? 586815808[/snapback] Digital Communications System Technician or something of the sort. I can't remember the actual name :lol:. It is just referred to as DCST. After I am done this I have a 12 page PowerPoint presentation due also. :pinch: Link to comment Share on other sites More sharing options...
_sphinx_ Posted November 16, 2005 Share Posted November 16, 2005 Digital Communications System Technician or something of the sort. I can't remember the actual name :lol:. It is just referred to as DCST. After I am done this I have a 12 page PowerPoint presentation due also. :pinch: 586815838[/snapback] Correct me if I'm wrong, but should a "technician" know everything about integrated cuircuts and at least some things about basic electronics?! Is this really a Major?! coz resistors are electronics 101...I myslef studied resistors in OL physics (IGCSE which is basically GCSE but with an I!) in the electricity chapter. I'd assume you'd be dealing with LEDs, LDRs, diodes and logic gates right now! Link to comment Share on other sites More sharing options...
mrchetsteadman Posted November 16, 2005 Author Share Posted November 16, 2005 Correct me if I'm wrong, but should a "technician" know everything about integrated cuircuts and at least some things about basic electronics?!Is this really a Major?! coz resistors are electronics 101...I myslef studied resistors in OL physics (IGCSE which is basically GCSE but with an I!) in the electricity chapter. I'd assume you'd be dealing with LEDs, LDRs, diodes and logic gates right now! 586816969[/snapback] Good point. I would think so, but this is my 1st semester. So electronics 101 may be in the future but right now, it has nothing to do with me. But that is something I will have to really get into because when I saw that it confused the hell out of me. Pretty much like when I saw binary numbers for the first time. I almost freaked! Link to comment Share on other sites More sharing options...
comk Posted November 21, 2005 Share Posted November 21, 2005 +Resistance increases as temperature increases in metals (good conductors), and it decreases as temperature increases in Semi-Conductors. what else.....oh yeah, its measured in ohms (sign is capital letter omega: Ω) 586813248[/snapback] i thought resistance increase when temperature decrease...? am i right? Link to comment Share on other sites More sharing options...
rumbleph1$h Posted November 22, 2005 Share Posted November 22, 2005 i thought resistance increase when temperature decrease...? am i right? 586833954[/snapback] Generally speaking, the resistance of a conductor (i.e. internal resistance of a wire) will increase with increasing temperature (electrons drift freely), but for other materials like semiconductors (i.e. many thermistors), higher temperatures allow greater numbers of electrons to break free resulting in higher conductivity and lower resistance. Link to comment Share on other sites More sharing options...
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