Encara no tenim significats per a "electro magnet".
1An arrangement of parts somewhat analogous to that of a horseshoe electro magnet and armature is shown in Fig.
2This could, of course, be done by exciting the electro magnet with a constant current from a separate source.
3The plan we adopt is to excite the electro magnet by the whole or a part of the current which is to be measured.
4These two latter wires end in a system of electro magnets, M1, provided with a polarized armature.
5He felt as though he were a piece of iron being attracted simultaneously in several directions by powerful electro magnets.
6To imitate as nearly as possible permanent steel magnets, it is therefore necessary to use electro magnets, the cores of which are easily saturated.
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