Question 11.15: Determine the maximum and minimum voltage across the resisto...

In Figure 11-43(a), the maximum voltage across R is

V_{max} = V_{DC} + V_{p}= 12 V + 10V = 22 V

The minimun voltage across R is

V_{min} = V_{DC} –  V_{p}= 12 V –  10V = 2 V

Therefore, R_{(tot)} is a nonalternating sine wave that varies from +22 V  to  +2 V, as shown in Figure 11 – 44(a). In Figure I l-43(b), the maximum voltage across R is

V_{max} = V_{DC} + V_{p}= 6 V +  10V = 16 V

The minimum voltage across R is

V_{min} – = V_{DC} –  V_{p}= -4  V

Therefore, V_{R(tot)} is an alternating sine wave that varies from +16 V to -4 V, as shown in Figure 11-44 (b).