Snow, Benjamin Warner, 1860- · Madison, Wis. · leaf 435
rceare straight, equidistant,and parallel. In the nearneighborhood of poles ormagnets, it is impossibleto find a uniform field.365. Moment of the Couple Tending to Turn a MagneticNeedle. AVhen a magnetic needle is placed at right angles tothe lines of force in a magnetic field, it is acted upon by… … Fig. 2.34. A imiform magnetic field. Hm. If the length of the needle is I, the moment of the couple tend-ing to turn the needle is A M A A AH in m AAAAAAAiAAl AAAAAAAi^||AAAffM H ni \-\ rn Fl(!. A couple acts upon a mainetic needle.
Physics
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