OP ARTS AND SCIENCES. 



419 



Substituting these values, I find 

 M 



II 



= 1096016; 



and hence 



--^ 



3005600 



1096016 



= 1.656. 



(y) Determination of {. 



I used two different coils, with results that agreed very nearly, as 

 shown by the table which follows : — 



