Practical Electrical Testing in Physics And Electrical Engineering Being a Cour
Practical Electrical Testing in Physics And Electrical Engineering Being a Cour
George Dudley Aspinall Parr
The book Practical Electrical Testing in Physics And Electrical Engineering Being a Cour was written by author George Dudley Aspinall Parr Here you can read free online of Practical Electrical Testing in Physics And Electrical Engineering Being a Cour book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Practical Electrical Testing in Physics And Electrical Engineering Being a Cour a good or bad book?
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Ballistic or inductive methods. D. Traction methods. E. Optical methods, which are suited for measuring the per- meability in intense magnetic fields. In the following pages we shall only consider methods A, B, and C, and these we may now proceed with. 87. Measurement of Magnetic Permeability (Magnetometer Method). Introduction. This method, which is very generally associated now with the name of Professor Ewing, who has employed it in a large amount of research work in magnetism undertaken by ...him, Practical Electrical Testing. 147 is one in which the magnetic qualities to be measured are deduced from the steady deflections of a suitable magnetometer needle, affected by the specimen to be tested. It is only applicable to long straight rods of the material for the following reasons. When a rod of magnetic material is uniformly wound with insulated wire and magnetized by a current sent through the coil, it develops free magnetism and definite polarity at its ends, which exerts a demagnetizing influence or force, opposing the main ^magnetizing force due to the coil.
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