PERIODS OF ELECTRICAL VIBRATIONS. 223 
Observations were first taken with a resonator with bare 
ends, the distance between them being varied from 0°05 to 
4°*7cms. Two other resonators were tried, one with spheres 
1°7 cms. in diameter on its ends, and the other with spheres 
2°2 cms. in diameter, the length of the wire connecting the 
two spheres being 152 cms. in both cases. The following 
is a table of the results obtained, the distance between 
the knobs being the length of the gap in the circuit :— 
Table IV. 
ice lonoth | Diameter of spheres | Distance between Fert of sae 
ae at ends of wire. surfaces of spheres. ae: 2 Ment prea tg 
152 cms. 00 0:05 cms. 404 cms. 
2” 2” 39 3°05 39 ; 387 cy) 
33 33 39 4°70 33 587 5B) 
152 ems. 1°70 cms. 0:20) |; 425 cms. 
33 3) be) 33 0°78 39 420 99 
+3 39> 33 3° 9°10 33 396 93 
152 cms. 2°20 cms. O20) 5; 428 cms. 
33 33 es) 3”) 0°78 39 - 423 39 
tt ws os re 3°95 ,, 404, 
The relations between the values given in the above table 
are shown graphically in Fig. 7. 
pple! 
ah 
Bee 
Ce 
£ a 
= 
& 
v 
ax 
= is 
9 
Ss 
> , 
& 
_ eS ee oe 
Distance opaert of knob 
Fig. 7. 
