Electrical Engineering Problems
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In our eReader you can find the full English version of the book. Read Electrical Engineering Problems Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Electrical Engineering Problems
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F. Induced. What is the average inductance during this increase? (3 min. ) 14. The core of a 25-kv-a. , 60-period transformer is 15 X 20 cm. And the primary winding has 500 turns. The density, corre- sponding to a magnetizing current of 0. 2 ampere, is 5000. Re- quired the average inductance for this current, and the induced e. M. F. If the current were reduced to zero at a rate of 100 amperes per second. (3 min. ) 15. An electromagnet has 1200 turns; with 4. 5 amperes the flux is 5 X 10 7, and... with 2 amperes 3 X 10 7 . What is the average inductance? If the density is such that between these limits the magnetization curve can be taken as a straight line, what will be the e. M. F. Of inductance if the current change from 3 to 3. 2 amperes in 0. 1 second? (3 min. ) 16. A circuit has 1000 turns, the area of the enclosed magnetic circuit is 20 sq. Cm. With 4 amperes the density is 10, 000 and with 9 amperes it is 14, 000. Required the average value of L between 4 and 9 amperes. (1 min. ) INDUCTANCE AND INDUCED E.
What to read after Electrical Engineering Problems?
You can find similar books in the "Read Also" column, or choose other free books by Francis Cary Caldwell to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
F. Induced. What is the average inductance during this increase? (3 min. ) 14. The core of a 25-kv-a. , 60-period transformer is 15 X 20 cm. And the primary winding has 500 turns. The density, corre- sponding to a magnetizing current of 0. 2 ampere, is 5000. Re- quired the average inductance for this current, and the induced e. M. F. If the current were reduced to zero at a rate of 100 amperes per second. (3 min. ) 15. An electromagnet has 1200 turns; with 4. 5 amperes the flux is 5 X 10 7, and... with 2 amperes 3 X 10 7 . What is the average inductance? If the density is such that between these limits the magnetization curve can be taken as a straight line, what will be the e. M. F. Of inductance if the current change from 3 to 3. 2 amperes in 0. 1 second? (3 min. ) 16. A circuit has 1000 turns, the area of the enclosed magnetic circuit is 20 sq. Cm. With 4 amperes the density is 10, 000 and with 9 amperes it is 14, 000. Required the average value of L between 4 and 9 amperes. (1 min. ) INDUCTANCE AND INDUCED E.
What to read after Electrical Engineering Problems?
You can find similar books in the "Read Also" column, or choose other free books by Francis Cary Caldwell to read onlineMoreLess
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