(a)[2]
On Fig. 6.1, draw symbols for the four diodes so that the polarity across the load matches the diagram.
(b)[3]
Calculate the ratio $\frac{\text{number of turns on the secondary coil}}{\text{number of turns on the primary coil}}$.
Physics 9702 · AS & A Level · Rectification and smoothing
Rectification and smoothing — practice question
A student has to design a circuit that will produce a direct voltage with peak value $9.0\,\text{V}$ from a $240\,\text{V}$ alternating supply. The student employs an ideal transformer and a bridge rectifier that contains four ideal diodes. Figure 6.1 shows the circuit diagram with part of it already completed.