(a(i))[1]
On Fig. 10.1, circle the diodes that conduct when point B is positive relative to point A.
(a(ii))[1]
Calculate the maximum potential difference $V_{\text{MAX}}$ across resistor R.
(b)
A capacitor is inserted into the circuit to smooth the potential difference across resistor R. The variation with time $t$ of the potential difference $V$ across resistor R is shown in Fig. 10.2.
(b(i))[1]
On Fig. 10.1, draw the symbol for a capacitor, connected so as to produce smoothing.
(b(ii).1)[1]
State the effect, if any, on the magnitude of the ripple on $V$ when a capacitor of larger capacitance is used.
(b(ii).2)[1]
State the effect, if any, on the magnitude of the ripple on $V$ when the resistor R has a smaller resistance.