Tractor Talk Discussion Board |
Re: Electronics 101 Question .....
[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]
Posted by Gary Schafer on October 25, 2006 at 18:19:25 from (63.135.132.238):
In Reply to: Electronics 101 Question ..... posted by MMB on October 25, 2006 at 15:35:07:
Out of all those replies not one person got the right answer. A few were close. Most all got the right amount of power. But the question was "which would generate more heat, the high ohm resistor or the low ohm resistor?". Of course the answer is the low ohm resistor would generate more heat because it is dissipating more power. The wattage rating of the resistor has nothing to do with the amount of heat generated. Only the amount of power flowing (or being dissipated) in the resistor determines the amount of heat generated. A resistor rated for 100 watts will generate the same amount of heat as one rated for 10 watts provided the same amount of power is flowing in each (I squared R) or E I or E squared /R. ALL power dissipated in ANY resistor is directly converted into heat. A larger wattage resistor can handle more power than a lower wattage resistor but each will give off the same amount of heat with the same amount of power supplied because: ALL POWER DISSIPATED IN ANY RESISTOR IS DIRECTLY CONVERTED INTO HEAT. Regards Gary
Replies:
Home
| Forums
Today's Featured Article -
Show Coverage: Journey to Ankeny - by Cindy Ladage. We left Illinois on the first day of July and headed north and west for Ankeny, Iowa. Minus two kids, we traveled light with only the youngest in tow. As long as a pool was at the end of our destination she was easy to please unlike the other two who have a multitude of requirements to travel with mom and dad. Amana Colonies served as a respite where we ate a family style lunch that sustained us with more food than could reasonably fit into our ample physiques. The show at Ankeny
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co. All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|