Posted by MarkB_MI on May 25, 2011 at 19:29:57 from (166.203.148.20):
In Reply to: OT: Ham radio licence. posted by doug in illinois on May 25, 2011 at 18:33:17:
Electrical engineering has always used metric units. Only a few english units are used (mainly horsepower and Btu), and none of those are used in electronics. Volt, amp, watt, ohm, farad, and henry are all metric units and have no english equivalent.
I don't think you're so concerned with the metric units (which you already use) as you are of scientific notation, or more specifically "engineering notation", where exponents are always multiples of three.
All you need to know was covered in high school algebra, which you probably took but just don't remember. If you have problems with scientific notation, pick up a high school algebra textbook, it will have all you need to know.
Consider this: Calculators that can handle scientific notation are relatively new devices, the first ones came out in the early 70's. Before that, engineers used slide rules, and slide rules can't handle exponents at all. Only the mantissas of the operands are used with a slide rule; exponents must be calculated on paper or in the engineer's head.
Knowing how to do scientific notation will help you take the test, but I'd still recommend you plunk down for a "scientific" calculater. Scientific calculators can normally handle numbers between 10-99 and 10+99. A good scientific calculator will run around 30 bucks.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
... [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]
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.
