15. For each set of measured voltages at the points (1, 2, and 3) indicated in Figure 2-42, determine if they are correct and if not identify the most likely fault(s). State what you would do to correct the problem once it is isolated. The IN963A is a zener diode with a 12 V breakdown voltage. (a) V₁ =110 V rms, V₂ = 30 V dc, V₁ = 12 V dc (b) V₁ =110 V rms, V₂ = 30 V dc, V₁ = 30 V dc (c) V₁=0V, V2=0V, V₂ = 0V (d) V₁ = 110 V rms, V₂ = 30 V peak full-wave 120 Hz voltage, V₁ = 12 V, 120 Hz pulsating voltage (e) V₁ =110 V rms, V₂ = 0V, V₁ = 0V Power on F₁ 110 V ac FIGURE 2-42 00000 eeeee 5:1 51 D3 D R₁ w D2 DA 330 Ω C₁ Ds IN963A 1000 μF All IN4001