Electricity and magnetism for advanced students (1920)
Starling, Sydney George, 1873- · London Longmans, Green · leaf 30
meridian. This does not ingeneral coincide with the geographical meridian, and its position maybe roughly determined by observing the direction in which a compassneedle will set; but since the magnetic axis of the needle may not coin-tide with its axis of symmetry or geometric axis, the needle… … Fig. 17. 20 ELECTRICITY AND MAGNETISM CHAP. north, but on suspending it with its other face upwards it will makethe same angle on the other side of magnetic north. The direction ofthe mnfnetic axis and of the magnetic meridian will then be found bybisecting the angle between the two position* of…
Electricity · Magnetism
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