gives the successive times which the droplet required to fall between two fixed cross-hairs in the observing telescope whose distance apart corresponded in this case to an actual distance of fall of .5222 cm. It will be seen that these numbers are all the same within the limits of error of a stop-watch measurement.
[TABLE IV]
| 13.6 | 12.5 | |
| 13.8 | 12.4 | |
| 13.4 | 21.8 | |
| 13.4 | 34.8 | |
| 13.6 | 84.5 | |
| 13.6 | 85.5 | |
| 13.7 | 34.6 | |
| 13.5 | 34.8 | |
| 13.5 | 16.0 | |
| 13.8 | 34.8 | |
| 13.7 | 34.6 | |
| 13.8 | 21.9 | |
| 13.6 | ||
| 13.5 | ||
| 13.4 | ||
| 13.8 | ||
| 13.4 | ||
| Mean | 13.595 |
The column marked
gives the successive times which the droplet required to rise under the influence of the electrical field produced by applying in this case 5,051 volts of potential difference to the plates
and
