2007-07-06 03:29:54 · 9 answers · asked by jaedah 1 in Science & Mathematics ➔ Engineering
Restistors are futile.
Oh wait .. that was "Resistance". Sorry.
2007-07-06 04:14:42 · answer #1 · answered by Richard S 3 · 1⤊ 1⤋
Resistors can be used as heaters. I made a heater for my rabbit cage with some 10 Watt , 50 ohm resistors in series.
Resistors can be purchased with values of .001 ohm or less, to many megohms (perhaps 100M ohm?. ) This is a ratio of 10^11. No other component, except a capacitor, is available with this range.
Resistors are manufactured with sizes down to .04 inch
2007-07-07 10:30:13 · answer #2 · answered by Anonymous · 0⤊ 0⤋
It is theoretically possible to use a resistor to get free energy.
Any resistor at a temperature greater than absolute zero has a tiny voltage at its terminals due to thermal noise. Someone more cleaver than me may one day find a way to harness the energy from a great number of resistors to power their electric car for free!
2007-07-06 04:26:55 · answer #3 · answered by Anonymous · 0⤊ 0⤋
About the best I can come up with are the mnemonics to remember the color codes of resistors. 0 thru 9
"Bad Boys Ravish Only Young Girls But Violet Gives Willingly"
Black Brown Red Orange Yellow Green Blue Violet Gray White
If you grew up in the Milwaukee area, the phrase is slightly different:
"Blatz Beer Rots Our Young Guts, But Violet Goes Willingly"
Black is also easy to remember as zero because of the nothingness common to both.
The third band is the multipler that shows the number of zeros.
The electronic color code was developed in the early 1920s by the Radio Manufacturer's Association, now part of Electronic Industries Alliance and codified as EIA-RS-279. The international standard IEC-60757 is equivalent.
The link below provides more history on the color coding of electrical components.
2007-07-06 13:10:55 · answer #4 · answered by Thomas C 6 · 1⤊ 0⤋
DealTaker: Great Gifts Employment: T-Mobile New Video: Kenny Beck Champions: a) Ryan Howard Country Music Trivia: c) Jimmy Buffett Games: Magic Hello, Mr.President: a) "Old Man Eloquent" This Day in History: a) West Virginia Where in the World: b) Mt. Everest
2016-03-14 23:40:36 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Here's a real trivia factoid for you.
When Hoover Dam was finished in the mid-1930's, the control system for the power generators used components of that day, including some rheostats (variable power resistors). Those components continue to be used to this day, because the quality of some of those components (including the rheostats) are superior to anything today that would possibly replace them.
This factoid was given to me by an engineer who works at the dam.
.
2007-07-06 05:50:14 · answer #6 · answered by tlbs101 7 · 0⤊ 0⤋
WOW she said "cool" and "resistors" in the same sentence.
2007-07-06 03:33:28 · answer #7 · answered by Anonymous · 0⤊ 0⤋
If you use a blow-torch on one (hold it with a pair of needle-nose pliers, or you'll burn your hand) it will drive smokers out of your office!
Smoke makes them (and all electronics) work. If you let the smoke out, they don't work anymore.
2007-07-06 03:41:15 · answer #8 · answered by jbtascam 5 · 0⤊ 0⤋
when there is no current through them they are cool
2007-07-06 03:36:14 · answer #9 · answered by zebedos 3 · 0⤊ 0⤋
very good question
2016-08-24 07:50:53 · answer #10 · answered by Anonymous · 0⤊ 0⤋