Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 293
int on a lamp filament which is carrying 1 ampere ofcurrent (see § 284) ? \ 252 ELECTRICITY IN MOTION Magnetic Effects of the Current ; PropertiesI of Coils 306. Shape of the magnetic field about a current. If we place the wire which connects the plates of a galvanic cell in a vertical i^osi-tion… … Fig. 249 Fig. 2.50 Magnetic field about a current the wire as their common center. We find, moreover, that reversing thecurrent reverses the direction of the needle. If the current is very stiong(say 40 amperes), this shape of the field can be shown by scattering ironfilings on a plate through…
Physics
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