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 843
It is first necessaryto find the effective length ofthe magnet, I, and the strengthof the earths field Hj. This iseffected by placing the speci-men in the coil and magne-tising it with the strongestcurrent available, and thenstopping the current, when the specimen will remain magnetised.Take the… … Fig. 757.—Magnetometer arranged to measureintensity of magnetisation. MHi l\7, The specimen is now brought nearer to the needle, to a distance when a2 cm and the new deflection 0., observed M H, (tf22-Z2)5 HcllCI, 2d1 2d, tan 6] = (;in da 2d, tan 0 2 J lxiv MEASUREMENT OF SUSCEPTIBILITY 819 (Z^-/2_…
Physics
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