Find the resistance of a 5 gauge standard solid copper wire at 20oC, that is 4844 meters long.
Answer in Ohms
step by step plz!
2007-09-30 10:43:03 · 2 answers · asked by blankets3 1 in Science & Mathematics ➔ Engineering
1) Go to www.wikipedia.com and search on AWG (American Wire Gauge)
2) Read through the table and find the reistance of copper wire. Values provided are Ω per km at 20 °C.
3) Since a resistance value for 5 gauge is missing, interpolate using the values of 4 and 6 AWG copper.
4) Multiply the 5 gauge resistance by your length of 4.844 km.
5) Your final answer is in ohms.
2007-09-30 13:45:13 · answer #1 · answered by Thomas C 6 · 1⤊ 0⤋
Looking up the values for wire resistance, which you should have done yourself, the best I could find on a short search shows that #6 has a resistance of .003 ohms per meter, and #10 has a resistance of 0.0018 ohms per meter. Since there is a difference of 0.0012 ohms per meter between the two, the step for #6 to #5 would be about 0.0003 ohms per meter giving an estimate of 0.0033 ohms per meter. Since this is your home work assignment that you should have been doing other than the "other" things, probably not school related, or at least more fun than doing this work, you now have a basis for figuring out the answer, so, have at it. School work first, entertainment a dead last, even if it means going withoout any for a period of time.
2007-09-30 20:33:13 · answer #2 · answered by Anonymous · 0⤊ 0⤋