336 Mr. W. P. Boynton on the 



currents in the two circuits, while columns d and e give 

 Ri + '1694.R 2 , computed from l x and I 2 respectively by the 

 equations just given. 



Table IV. 



















a. 



v . 



b. 



c. 



1\. 



d. 



I 2 . 



e. 



•2 



7,300 



8,200 







•136 



315 



•067 



130 



}) 





it 



•2 



•124 



379 



18 



30-5 







M 



•3 



11 



482 



•188 



279 





, 



10,000 







•83 



8-5 



•15 



43 8 



f) 



5) 



}J 



1 



•78 



9-6 



•2 



247 



>> 







•2 



•73 



10-95 



31 



10-25 







J5 



•3 



•69 



1225 



•38 



6-84 



f 



„ 



11,430 







•96 



6-33 



•168 



35 





?) 



fJ 



•1 



•88 



7-53 



225 



195 





55 





•2 



•85 



8-09 



295 



11-33 



5J 







•3 



•80 



912 



415 



5-73 



55 



55 



12,800 







106 



5-2 



163 



371 







55 



•1 



102 



5-6 



295 



11-33 





„ 





•2 



•97 



6-2 



355 



7-82 



„ 



5) 



,, 



•3 



•95 



6-47 



438 



513 



f 



f) 



17,300 







1-25 



3-7 



215 



21-3 



; , 





f 



•1 



117 



4-26 



367 



7 33 



55 



J? 



55 



•2 



114 



448 



41 



5-88 





„ 



IS 



•3 



111 



4-73 



49 



411 



•4 



13,650 



14,900 







•7 



415 



128 



210 



„ 



s> 



J} 



•1 



•66 



46-7 



237 



61-3 



55 





J} 



•2 



•61 



54-7 



405 



21 





„ 



; , 



•3 



•-54 



69 8 



5 



138 



t 



J 



18,100 







115 



1533 



16 



134-5 - 



J} 



)} 



}f 



■1 



1*12 



16-2 



244 



58 



5J 



fJ 



tt 



•2 



1-08 



181 



311 



35-6 



" 



55 



» 



•3 



1-00 



20-3 



481 



149 



It will be seen by reference to the table that the values of 

 the resistances here found are of the same order as those 

 found in the case of open secondary circuit. 



It has been mentioned that the resistances R a and R 2 consist 

 both of spark-gap and of metallic resistance. 



Gray and Mathews * show that the virtual resistance of a 

 straight metallic wire to very rapidly oscillating currents is 



Taking //, as unity, this can be reduced to the form 



R' = Rrt/™, 

 V 2k' 



* ' Treatise on Bessel's Functions/ p. 160. 



