(a)[1]
the greatest potential difference $V_{\text{MAX}}$ across resistor R.
(b)[3]
Find the time interval, to two significant figures, between time $t_1$ and time $t_2$.
Physics 9702 · AS & A Level · Rectification and smoothing
Rectification and smoothing — practice question
A bridge rectifier has four diodes. Its output is connected to a resistor R, as shown in Fig. 10.1.
The e.m.f. input $E$ to the rectifier varies with time $t$ according to
$E = 15\cos(210t)$
where $t$ is measured in seconds and $E$ is given in volts.
Figure 10.2 shows how the potential difference $V$ across resistor R changes with time $t$.
Determine: