Snow, Benjamin Warner, 1860- · Madison, Wis. · leaf 435
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. … I r Fig. 2.30. A magnetic needle turnsunder the action of a couple. TiiK :m.\gket]c siiEr.L. iM 11 ml. If the needle makes au angle 0 with the lines of force of theliekl, the moment of the couple tending to turn the needle par-allel to the lines of force is still the product of one of the forcesand…
Physics
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