In an EDM operation using RC generator, the supply voltage Vs $=200$ V$,$ capacitance is C $=2$ F$,$ resistance of the charging circuit is Rc $=2000$ ohms and the machine resistance Rm $=200$ ohms. The dielectric uses kerosene, which has dielectric strength of $1\mathrm{.}5$ MV$/$m$.$ If the machining is performed at a constant gap of $100$ m$,$ and the spark can be sustained until the voltage of the capacitor reaches $20$ V$.$ Calculate the capacitor breakdown voltage, pulse on and pulse off time during machining and the pulse energy