on comparison of charges 337 



650] [Results of Art 649.] By Mar. 13. [Art 553.] 

 Double plate = circ. i8J + -n sq. inc., or -12 inc. el. 



Circ. 36 = 2 doub. + 2-67 inc. el. without allowance for communi- 

 cating wire, &c., or 2-95 with. 



D = 2 doub. i -60 with allowance. 



Circ. 36"! (+ 3-19 



\ = Circ. i8i x 2 { *. 

 D J \- 1-36 



By Mar. 15 [Art. 553]. 

 Doub. pi. = i8J + -20. 



D I ,- -91 (- 1-51 



pi. air ! = circ. i8J x 2 \ + -53 = 2 doub. j I- -13 with allowance, 

 circ. 36) (+ 3-66 1+ 3-26 



651] All the following are with allowance. 



Mar. 19 [Art. 554]. i ros. = circ. 9-3 + i-oi. 



circ. i8J = 2 ros. - -47 = circ. 9-3 x 2 + 1-55. 

 circ. 36 = 4 ros. + 2-61 = circ. i8J x 2 + 3-55. 



Mar. 23 [Art. 554]. i ros.= circ. 9-3 + -85. 



circ. i8f = 2 ros. - -63 = circ. 9-3x2 + 1-07. 

 circ. 36 = 4 ros. + 1-44 = circ. i8J x 2 + 2-76. 

 1-32 



Mar. 24 [Art. 554]. i ros. = circ. 9-3 + 1-25. 



circ. i8J = 2 ros. - -36 = circ. 9-3 x 2 + 2-14. 



circ. 36 = 4 ros. + 2-98 = circ. i8 x 2 + 3-70. 



Plate air i = circ. 36 - 3-03 = circ. i8J x 2 + -67, 



By mean of all 



circ. 36 = circ. i8| x 2 + 3-37. 

 circ. i8 = circ. 9-3x2+ 1-59. 



Therefore charge of circle of 



37 inc. , i8i by 4-47 



1, . exceeds 2 ce charge of circ. of , 



i8 inc. 9^ by 1-69 



37 inc. exceeds 4 times charge of g| by 7-85. 



652] *If charge circle is greater than it would be if placed at a great dis- 

 tance from any other body in ratio of a : a 36, 



charge circ. of i8 should exceed in ratio of a : a - i8J and so on. 

 Therefore, if we suppose a = 167, 



1 36 (9-89 



charge circ. Ji8J should exceed its true charge by ^2-31 , 



b-3 I '55 



and charge circ. 36 should exceed 



2 ce charge of i8J by 4-27 , . f -90 greater 



' , which is \ 

 4 times charge of 9-3 by 6-49 |/oo less 



* [See Art. 338, and Note 24.] 

 c.p. i. 22 



