A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 841
on the other, andthe number of lines crossing thissquare centimetre is 4ttI (p. 811).Hence, the total number of linesof induction per square centi-metre (B) is made up of H dueto the original field, and 47rldue to the magnetisation of the Fig. 753.—Lines of induction due to a iron or B=H +… … H = 1+^H: or jbt = 1 + 47T&, li being the magnetic permeability of the material, and k itsmagnetic susceptibility, as defined on p. 811. The right-hand side of the equation B=H+4ttI is representedby the lines drawn in Fig. 753, the two sets of lines being drawn inthe same diagram. Within the…
Physics
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