Atkinson, Philip. [from old catalog] · New York, The Century co. · leaf 124
hich shows, at A, B, C, and D, the four differentpositions which a balanced magnetic needle tends toassume when placed parallel to a wire through which an MAGNETISM. 101 electric current is flowing in the different directions in-dicated by the arrows; its poles being deflected in op-posite… … Fig. 43. flows under it in the opposite direction to that in whichit flows over it. Hence when the current flows round itlengthwise, in opposite directions above and below, as atE and F, it is deflected with twice the force, the undercurrent deflecting it in the same direction, in each case,as the…
Electricity
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