Below is a circuit consisting of a capacitor, voltage supply and resistors. There is a switch that lets the capacitor charge and discharge. I have also uploaded the given answers below;
I understand that for:
(i) Tc: you find the thevenin resistance and multiply it by the capacitor value.
(ii) Vc Max: the voltage across the parralel (Rz) resistor.
(iii): I am not sure that he has done there. Has he used the capacitor charge or discharge formula and rearranged it of some sort?
(iv): Not sure what hes done here?