The Principles of Electric Wave Telegraphy
The Principles of Electric Wave Telegraphy
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In our eReader you can find the full English version of the book. Read The Principles of Electric Wave Telegraphy 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 Principles of Electric Wave Telegraphy
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To quickly assess the difficulty of the text, read a short excerpt:
Then in the ordinary system of units we have — B = ftH (1) ^=^^ (2) where fi is the magnetic permeability and E is the dielectric constant.' * In Mr. Oliver Heaviside's system of rational units the 4r would be omitted and the relation between D and £ expressed by the equation D = KE.
U 290 ELECTROMAGNETIC WAVES If, then, we describe any closed line in a conductor, and make the magnetic flux through it vary with time, we have produced in the cizctiit an electromotive force. In accordance with Fa...raday's law, the time rate of change of the surface integral of the magnetic flux through this area is a measure of the electromotive force created in the circuit.
This electromotive force is the line integral of the electric force E.
Hence the line integral of E round the boundary is equal to the surface integral of — -it (or of — B, as we may write it) over the area. Therefore it follows that — B is the curl of E, or the time rate of decrease of the magnetic flux is the curl of the electric force.
What to read after The Principles of Electric Wave Telegraphy?
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:
Then in the ordinary system of units we have — B = ftH (1) ^=^^ (2) where fi is the magnetic permeability and E is the dielectric constant.' * In Mr. Oliver Heaviside's system of rational units the 4r would be omitted and the relation between D and £ expressed by the equation D = KE.
U 290 ELECTROMAGNETIC WAVES If, then, we describe any closed line in a conductor, and make the magnetic flux through it vary with time, we have produced in the cizctiit an electromotive force. In accordance with Fa...raday's law, the time rate of change of the surface integral of the magnetic flux through this area is a measure of the electromotive force created in the circuit.
This electromotive force is the line integral of the electric force E.
Hence the line integral of E round the boundary is equal to the surface integral of — -it (or of — B, as we may write it) over the area. Therefore it follows that — B is the curl of E, or the time rate of decrease of the magnetic flux is the curl of the electric force.
What to read after The Principles of Electric Wave Telegraphy?
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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