Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity . EXPLANATIONS . 5. Compound Horseshoe Magnet.—A magnet composed of several horseshoemagnets joined together, side by side,as in Fig. 4, for the purpose of in-creasing the power, is called a compoundhorseshoe magnet, or magnetic magnets are charged separately,and are put together with all the similarpoles in the same direction. 9. Armature.—A piece of soft iron, adapted to,and intended to connect the poles of a magnet, iscalled an armature
Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity . EXPLANATIONS . 5. Compound Horseshoe Magnet.—A magnet composed of several horseshoemagnets joined together, side by side,as in Fig. 4, for the purpose of in-creasing the power, is called a compoundhorseshoe magnet, or magnetic magnets are charged separately,and are put together with all the similarpoles in the same direction. 9. Armature.—A piece of soft iron, adapted to,and intended to connect the poles of a magnet, iscalled an armature, or keeper. Horseshoe magnetsare usually provided with an armature, consistingof a straight bar of iron, for the purpose of pre-serving their magnetic power: this should be keptconstantly applied to the poles of the magnet whenit is not in use; as shown in Fig. 4, where A is thekeeper. Armatures are employed in various experi-ments, and their forms vary with the purposes 5. 10. Magnetic Needle.— A light and slendermagnet, mounted upon acentre of motion, so asto allow it to traversefreely in certain direc-tions, is called a mag-netic nee
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectmagnetism, bookyear18
