972 



Voltaic Electricity. Section 7: Induction Currents. 



No. 62 426 - 



63427. 1:10. 



62426. 1:7. 



62 429. 1 : 8. 



62 430. 1 : 10. 



52064. 1:7. 



62.426. Apparatus for Explaining the Existence of the Magnetic Induction Current and the 

 rule for its direction, Figure (M. P. 9 th Edn. Ill, Fig. 565); Electromagnet with in- 

 dication of lines of force and device for the presence of the induction current . . . 



62.427. Simple Earth Inductor for Direct and Alternating Current, alter s/ymansky, 



The most suitable galvanometer to use for above is Szymansky's, No. 61,342, p. 883. 



62.428. Coil for showing Induction by the Earth's Field after Weinhold (\V. I), p. 853 [791]) 



62.429. Earth Inductor after Friedr. ('. (1. Miiller, F i g u r < (M. T. Fig. 220), with 200 turns 

 and a winding surface of 200 sq. cm 



62.430. Earth Inductor after Palmieri, Figure (M. P. 9 th Edn. Ill, Fig. 644), with round 

 frame 300 mm diameter, with 100 turns of 1 mm thick wire, with commutator and slip 

 rings for taking off D. C. and A. C. and with device for rotating the winding frame hori- 

 x.ontally and vertically 



52.064. Earth Inductor, F i g u re, \\ith commutator and slip rings for taking off 1). C. and 

 A. C., for the Whirling Table (Frick, phys. Techn. II, 1, Fig. 1118) 



52,063. -- idem, for taking off I). C. only 



62.433. Iron Bar, 60 cm long, with copper wire winding (.M. P. 9 th Edn. Ill, Fig. (554). for 

 showing that an induction current occurs when a bar magnet is passed along the winding 



62.434. Induction Coil F i g u re, fixed horizontally on a stand, with a powerful bar magnet, 

 for showing the presence of an induction current when the magnet is introduced into 

 the coil 



<1. 2655, 2660, 

 4122,6007, 



i s. d. 

 1. 12. 



1. 10.0 



0. 10.0 

 3. 10. 



3. 0. 



1. 16. 

 1. 13. 



0. 7. 



0. IS. 

 MM. 



