Investigation of d relationship between d length of a metallic conductor (e.g nichrome wire) and its resistance.
Can u help me with this I need info & don't know were 2 find it or can u give me a few tips. txs 4 u help
2006-12-30 09:42:24 · 4 answers · asked by well.theres.a.few 6 in Science & Mathematics ➔ Physics
I need to research info 4 a project but i'm not able 2 find any useful sites that give tips e.p the method.
It would b great if ye could tell me some sites.
txs
2006-12-30 10:01:38 · update #1
Check out this previous yahoo question/answer: http://answers.yahoo.com/question/index?qid=20060626004146AA2K8xp. Use the link there to wikipedia. Go down the table to 22AWG copper wire. You see that the characteristic is for resistance to increase 16.14 Ohms/1000 ft.
I found this site - it almost seems like it makes it too easy for you. http://www.bookrags.com/essay-2005/5/3/125856/8973
2006-12-30 11:31:08 · answer #1 · answered by sojsail 7 · 1⤊ 0⤋
nicely, the relationship is at as quickly as proportional: the longer the cord, the extra suitable its resistance. in spite of the undeniable fact that, in case you certainly desire an test to accomplish, do here: kit mandatory: voltmeter, ammeter, length of (metallic conductor) cord, crocodile clips, potential source, some cables. you placed up a circuit, the ammeter in sequence, the voltmeter in parallel around the cord, and (making use of the croc clips) connect the cables to the two ends of the cord, turning on the potential and measuring the voltage and modern-day (you're able to desire to maintain a style of continuous). Then, circulate one croc clip down in direction of the different end, measuring the voltage and modern-day each and every few cms, until you get suitable right down to the tip. The resistance (which will selection finding on the size of the cord) stands out as the voltage divided with the aid of the present at each and each degree.
2016-11-25 01:33:15 · answer #2 · answered by vanwinkle 4 · 0⤊ 0⤋
It's directly proportional. Twice as long, twice the resistance.
2006-12-30 09:48:24 · answer #3 · answered by Nomadd 7 · 0⤊ 0⤋
Resistance is directly proportional to length. (Also inversely proportional to cross-sectional area.)
2006-12-30 09:47:18 · answer #4 · answered by Anonymous · 0⤊ 0⤋