Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity . represents a stationarybar magnet, and thethree arrows indicatethe directions takenK by a magnetic needleplaced in differentpositions. The twoneedles near the south pole of the bar direct theirnorth poles towards it, the north pole of the stationarymagnet being too remote to influence them to anyextent. But the needle placed over the centre of thebar has its direction determined by both poles, andassumes a position parallel to the bar, but with itspol
Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity . represents a stationarybar magnet, and thethree arrows indicatethe directions takenK by a magnetic needleplaced in differentpositions. The twoneedles near the south pole of the bar direct theirnorth poles towards it, the north pole of the stationarymagnet being too remote to influence them to anyextent. But the needle placed over the centre of thebar has its direction determined by both poles, andassumes a position parallel to the bar, but with itspoles in a reverse direction. 144. In Fig. 47 are represented various directionsassumed by a small movable magnet brought near Fig. to a stationary one. These be readily observedby carrying a small bar magnet, suspended by astring, or, better, a magnetic needle, mounted uponits stand, slowly round a stationary bar magnet. 92 DAV IS S MANUAL.
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectmagnetism, bookyear18
