(a)[1]
In Fig. 11.1, label the load’s positive terminal with P.
(b)[2]
Fig. 11.2 shows how the potential difference $V$ across the rectifier input varies with time $t$. Calculate the root-mean-square (r.m.s.) current in load L.
(c(i))[1]
On Fig. 11.1, draw the symbol for a capacitor so that smoothing is produced.
(c(ii))[3]
With the smoothing capacitor fitted, the minimum potential difference across load L is $3.0\,\text{V}$. On Fig. 11.2, sketch how the potential difference across load L varies with time $t$.