No. 63005. 



Induction Repulsion. Apparatus for the Electromagnetic Units. 



1011 



J 



63 003. 1 : 6. 



63 004. 1 : 4. 



63 002. 1 : 8. 



63 005, 60 135. 1 : 7. 



63,001 . Brass Rod 50 cm long, with base and magnetic rod with suspension hook, Figure 



(see Figs. 3 and 4 of Grimsehl's work), without cell 



63,002. Brass Disc with 3 Magnetic Needles for quantitative investigation of the magnetic 



field, Figure (loc. cit. Fig. 5) 



63,003. Apparatus for Measurements of the Density of the Magnetic Field of Circular Currents, 



Figure (loc. eft. Fig. 8) 



s. d. 

 0. 7.0 



0. 12. 



1. 0.0 



63.004. Device for showing the Dependence of the Density of the Magnetic Field on the Radius 



of the Current-carrying Ring, Figure (loc. cit. Fig. 9) [ 2. 8. 



63.005. Complementary Parts to Pole Balance No. 60,135, in order to show with it the unit 



of electric current-density, Figure (loc. cit. Fig. 10) 0. 12. 



Cl. 5921, 5922, 5919, 

 5917, 5920. 64 * 



