oe 
421 
In the following table the results obtained with different tensions 
have been put together. 
| Tensions sar ar ies 
Ee (ee 
ej jen 
Eeken 
Here the tensions have been indicated by the potential differences 
between the plates in volts. The two following columns give values 
3 E An—aa » ° . . 
proportioual with a and therefore with n,—n, of the cloud in 
, 
the corresponding electric fields; for a tension difference of 1000 
volts bas been taken the value + 50. 
Representing this graphically we obtain this curve, where the 
! 2 3 
Fig. 5. 
tension is measured along the axis of X in kilovolts and the 
An —a 
values a ee quantities proportional with these along the Y axis. 
) 
