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Starting electronics
Figure 7.18 The breadboard layout of the circuit in Figure 7.16
now fairly steady at about 6V5 indicating that smoothing has
occurred. Although you can’t see it, the voltage waveform
would look something like that in Figure 7.17(b), with a ripple
voltage of about 1 V. The breadboard layout for the circuit is
shown in Figure 7.20.
We can show what happens when load current increases
by putting a lower value load resistor in circuit — take out
the 100 kΩ resistor and put a 10 kΩ resistor in its place. The
ripple voltage now increases causing greater changes in the
d.c. output level, and the whole waveform is shown as Figure
7.17(c).
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