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Description
Inductance Calculations: Working Formulas and TablesThis authoritative compilation of formulas and tables simplifies the design of inductors for electrical engineers. It features a single simple formula for virtually every type of inductor, together with tables from which essential numerical factors may be interpolated. Although compiled in the 1940s, before calculators and computers, this book provides fundamental equations that professionals and practitioners can use to produce algorithms for
This authoritative compilation of formulas and tables simplifies the design of inductors for electrical engineers. It features a single simple formula for virtually every type of inductor, together with tables from which essential numerical factors may be interpolated. Although compiled in the 1940s, before calculators and computers, this book provides fundamental equations that professionals and practitioners can use to produce algorithms for computer programs and spreadsheets.Starting with a survey of general principles, it explains circuits with straight filaments; parallel elements of equal length; mutual inductance of unequal parallel filaments and filaments inclined at an angle to each other; and inductance of single-layer coils on rectangular winding forms. Additional topics include the mutual inductance of coaxial circular filaments and of coaxial circular coils; self-inductance of circular coils of rectangular cross section; mutual inductance of solenoid and a coaxial circular filament and coaxial single-layer coils; single-layer coils on cylindrical winding forms; and special types of single-layer coil. An esteemed reference, this volume belongs in the library of every electrical engineer.
Binding Type: Paperback
Publisher: Dover Publications
Published: 10/01/2009
ISBN: 9780486474403
Pages: 286
Weight: 0.70lbs
Size: 8.40h x 5.30w x 0.70d
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4.1 ★★★★★
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Product Reviews
★★★★★ 5
Better than regular can openers
Color: White
Works great and leaves no sharp can edges.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
Easy to use without any effort
Color: Orange
Needed a small space electric opener to help with opening cans due to arthritis. Manual ones were difficult to use. This fits in the palm of your hand and is easy to attach to can. It opens regular size cans easily, although it is a bit slow. The one can it didn't work well on was Fancy Feast Cat Food cans. Seems to leave a sliver of metal on the edge, very tiny but of concern. Contacted customer service and they were excellent - quick responses and very helpful at working with me to see if it was just the fancy feast can or the opener. Seems that those two just don't work well together. They even sent me a second opener so that we could try to recreate the problem. I am keeping the original opener and returning the second one as neither will open the Fancy Feast can. They supplied a return label also. There are lots of cans in the world and this is just a minor function situation with this opener. I think it is a great product.
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Reviewed in the United States on May 27, 2025
★★★★★ 4
A very handy kitchen tool.
Color: White
This can opener is an easy, hands free tool, to use. It does open canned items efficiently, but slower than hand-turn openers, which saves a painful wrist motion from which I suffer. Unlike a traditional opener, this one cuts under the can edge which requires caution when removing the lid as exposed cut edges are very sharp. Also, the opener does not stop when it has completed its circuit. The start button has to be pressed to stop action.
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Reviewed in the United States on June 26, 2024
★★★★★ 5
Update Year Later, Love it! Really impressed
Color: Orange
Update: I've owned it a year now, still on original batteries (surprised me), it still works great. I still get a little annoyed with how slow it it, but might be time for new batteries. Once in a blue moon the circle is not completely cut, but that's on me as I control when to stop it, to reverse. No issuese removing lid, very smooth. Love it. Original review: I'm pleasantly surprised. It does a great job! Very smooth, safe cut. Who knew? That said, it is much slower than a standard electric can opener, and you have no idea where it's cutting. Now I started on the first letter on the product's label, and pay attention to when the circle is complete. Press the "on" button a second time and it goes backwards for a few seconds. Done! Use the attached magnet to pull off the lid. I'm thinking of buying a second one. Also, I very much like that it uses standard batteries, nothing weird to look for. Well done!
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Reviewed in the United States on September 4, 2024
★★★★★ 1
Opener leaves wire threads on the rim of the can when opening. Poses a danger if ingested.
Color: Orange
Purchased this item hoping it would make opening cans easier (I have osteoarthritis in my hands). First time I tried it, after it rounded the lid of a can of DelMonte green beans, nothing. I reseated it, and held it down when it started. It opened the can after circling the top two times. When I took the lid off the can, there were tiny wire "threads" stuck on the can, and more stuck on the Kitchen Mama opener. I was able to very carefully wipe the wire threads off and pour the can of beans into my pan. HOWEVER, I will not use this product again. Who wants to run the risk of ingesting wire threads?!!! I would return the product for a refund, but my husband destroyed the box opening it, so this will go into the garbage. I wouldn't sell at a garage sale or donate it, because someone else might ingest the wire threads, and then Kitchen Mama would have a lawsuit on their hands I wouldn't have given ANY stars, but you have to give at least one to write a review.
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Reviewed in the United States on March 11, 2026
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