The Alternate Current Transformer in Theory And Practice volume 1
The Alternate Current Transformer in Theory And Practice volume 1
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In our eReader you can find the full English version of the book. Read The Alternate Current Transformer in Theory And Practice volume 1 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 The Alternate Current Transformer in Theory And Practice volume 1
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8. Magnetic Screening and the Action of Metallic Masses in Induction Coils. At one stage* of his investi- gations Henry made the important discovery that, if a primary and secondary coil are separated by a metallic sheet, a notable decrease takes place in the intensity of the shock taken from the secondary circuit when a sudden discharge is passed through the primary, or continuous current started or stopped in the primary circuits. A thick copper plate was found more effective than a thin one ...in thus preventing the inductive effect of the primary upon the secondary coil. If a radial slit was cut in a circular metallic plate the annulling effect was altogether stopped. If the two edges of the gap (see Fig. 95) were furnished with wires leading to a magnetising spiral, Henry found he could in this way make evident the existence in the plate of a current induced by the action of the primary. * ^hoTMag. , Vol. XVI. 7l840, p. 257.
256 MUTUAL AND SELF INDUCTION.
A flat coil of insulated wire was substituted for the metal plate, and it was found that the screening action of this coil was only sensible when the two ends were joined so as to com- plete the circuit.
What to read after The Alternate Current Transformer in Theory And Practice volume 1?
You can find similar books in the "Read Also" column, or choose other free books by John Ambrose Fleming to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
8. Magnetic Screening and the Action of Metallic Masses in Induction Coils. At one stage* of his investi- gations Henry made the important discovery that, if a primary and secondary coil are separated by a metallic sheet, a notable decrease takes place in the intensity of the shock taken from the secondary circuit when a sudden discharge is passed through the primary, or continuous current started or stopped in the primary circuits. A thick copper plate was found more effective than a thin one ...in thus preventing the inductive effect of the primary upon the secondary coil. If a radial slit was cut in a circular metallic plate the annulling effect was altogether stopped. If the two edges of the gap (see Fig. 95) were furnished with wires leading to a magnetising spiral, Henry found he could in this way make evident the existence in the plate of a current induced by the action of the primary. * ^hoTMag. , Vol. XVI. 7l840, p. 257.
256 MUTUAL AND SELF INDUCTION.
A flat coil of insulated wire was substituted for the metal plate, and it was found that the screening action of this coil was only sensible when the two ends were joined so as to com- plete the circuit.
What to read after The Alternate Current Transformer in Theory And Practice volume 1?
You can find similar books in the "Read Also" column, or choose other free books by John Ambrose Fleming to read onlineMoreLess
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