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 810
to rotate it in opposite directions, are equal,,, F/// cos 6 Hit/ sin d ; H = tau0. LXTI THE MAGNETOMETER 785 For the magnet NS in the position shown, which is known as theend on position, F = 2M/d3 (p. 782), so that 2M M d\ -™=Htant7, or -=-^-tan ft. If the magnet is placed at NS, then F = M/d3,… … Fig. 727.—The magnetometer. needle point, or suspended by a fibre. It is provided with a longpointer pp, so that its position with respect to a horizontal circularscale may be read to half a degree or less. In Fig. 727 the magnet producing the deflection is shown inthe end on position at B, and is…
Physics
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