180 Prof. J. Perry or 



Frequency 10*6 per second. 

 Magnetic leakage 5 per cent. 



the 



M= 1-425. 



(Mr. Howitt.) 



A'. 



100 

 50 

 10 



5 



4 



3 



2 



1 



0-5 



01 







•9995 

 1-004 

 1-017 

 1-389 

 2-101 

 2-512 

 3-138 

 4-261 

 6-536 

 8-379 

 9-822 

 10-06 







•948 

 1-892 

 9-279 

 17-99 

 22-08 

 28-47 

 39-62 

 61-72 

 79-45 

 93-42 

 95-54 



89-427 



84-268 



79-253 



50-18 



37-097 



34-83 



33-66 



35-3 



45-05 



57-59 



7401 



78-97 



179-427 



179-985 



180-54 



184-9 



190-07 



192-54 



196-436 



203-44 



218-776 



234-155 



252-865 



258-4 



95 



94-8 



94-6 



92-8 



89-9 



88-3 



85-4 



77-2 



61-7 



39-7 



9-3 







P. 



4-997 

 50 

 94-9 

 444-5 

 847-5 

 1031 

 1305-5 

 1738-5 

 2308-5 

 2245-5 

 1353 

 962 



P'. 



E. 











44-94 



89-8 



89-55 



94-35 



430-6 



96-86 



808-5 



95-42 



975 



94-57 



1216 



93-12 



1569-5 



90-26 



1904-5 



82-49 



1578-5 



70-31 



436-3 



32-17 











Frequency 10*6 per second. M^l'35. 

 Magnetic leakage 10 per cent. (Mr. Howitt.; 



p- 



A. 



A'. 



i 



| 



€. 



e'. 



a'. 



P. 



-P'- 



E. 



X 



•9995 







89 427 



179-427 



90 



4997 











100 



1-003 



•8981 



84-808 



180-514 



89-81 



4541 



4033 



88-82 



50 



1017 



1-793 



80-308 



181-596 



89-65 



85-6 



80-3 



93-77 



10 



1-372 



8-690 



55-287 



19000 



86-90 



390-7 



378 



96-63 



5 



2-033 



1631 



46-59 



199-57 



81-55 



698-5 



|664-5 



95-14 



4 



2-353 



19-51 



46-17 



203-87 



78-36 



814-5 



768 



94-25 



3 



2-825 



24-29 



47-51 



210-29 



72-87 



954 



884-5 



92-72 



2 



3-532 



31-11 



52-36 



220-5 



62-22 



1078-5 



968 



89-73 



1 



4-494 



40-22 



63-85 



237-57 



40-22 



990-5 



808-5 



81-64 



0-5 



4-962 



44-57 



73-01 



249-71 



22-28 



719 



4966 



69-07 



01 



5-205 



46-84 



82-02 



261-02 



4-68 



354-8 



109-7 



30-91 







5-237 



| 4713 



1 



84-56 



263-99 







248-2 











To show the effect of even a magnetic leakage so small as 

 one-tenth of one per cent. Let y = '001, where 



M= s/TH(l-y). 



Taking, as before, L= 15, L' = '15, LI/-M 2 =4'5y, 



M 2 R' 

 I' = KL', >• = R + -~ = R + 100 R' nearly, 



J=L-^J=30y=-03. 



Take Y = 1000 sin kt, where £ = 1000, and therefore the 

 frequency is 159, we have the following results : — 



