Nipher — Nature of the Electric Discharge. 13 



From this equation it would appear that if the capac- 

 ity of the condenser per unit length is infinite oi p = 1, the 

 velocity v will be zero if E > 0. 



On the other hand if the velocity v were made equal 

 to that of light, R being in electrostatic units 



1 



loQeP 



ZxWR 



If R is measured in ohms 



0.434294 X3X10^°X 10^ 



loQioP 



2X9X10^0 

 = 0.007238 R 



R 



The values of p for various values R are given in 

 Table I. 



Table I 



Table II 

 P=1.0016H 



If the value of p be made 1.00164+ as in the case given 

 in the first line of Table I, the value of v for the various 

 values of R are given in Table II. The current delivered 

 will of course depend on the value V. 



The quantity of electricity per unit length of the con- 

 denser core is 



dQ _ V V _i 



dL~~ 2 log^p ~ Rv^ V 



The current in terms of the velocity v is therefore 



dQ 



If we now consider the conditions within the wire of 

 resistance R, to which this current is being delivered, v' 



