//Example 9// Ch 5 clc; clear; close; // given data Deq=600;//mean geometric distance b/w conductors in cm delta=1;//at standard temp and pressure r=1;//radius of conductors in cm E0=30*delta*(1+(0.3/sqrt(delta*r)));//corona onset field in kVpeak/cm printf("corona onset field %f kVpeak/cm",E0) V0=E0*log(Deq);//corona onset voltage printf("corona onset voltage %f kVpeak",V0) V0rms=V0/sqrt(2);//rms onset voltage in kV printf("corona rms onset voltage %f kV",V0rms)