High- Frequency Induction- Coil. 327 



The mean observed double frequency, from the table » 



is 1,017,000, which would give the observed frequency 



510,000 nearly. This is as good a degree of agreement 

 as could be expected, considering the degree of accuracy 

 of our knowledge of the constants of the system. 



Fig. 2. 



Table I. 



a. 



b. 



c. 



d. 



50 



4 



■05 



1-026 x 10 6 



50 



6 



•05 



1-026 



50 



9 



•053 



•963 



50 



4 



•05 



1-026 



50 



6 



■053 



•963 



50 



7 



•051 



•998 



50 



6 



•047 



1-097 



50 



10 



05 



1-026 



50 



6 



•05 



1-026 



64 



4 



•06 



1-093 



64 



3 



•063 



1-037 



64 



5 



•07 



•939 



64 



7 



•064 



1-026 



64 



5 | 



•068 



•967 



64 | 



7 



•063 



i 



1-044 



Average. 



1017 x10 s 



Maximum Potential. 

 It appears from equation (20) that the greatest difference 



of potential which we can have in the secondary circuit is 



2C 2 ^ 2VQMK, = 



K 2 ' v / a i K 1 -LoK 2 ) 2 + 4M 2 K,Ko ° 



2 A 2 



