In the circuit of Fig. P1.82 let R1 5 1.0 kV and R2 5 13 kV. (a) Assuming the Zener diode has VZ 5 5.1 V and all diodes have VD(on) 5 0.7 V, sketch and label the VTC of the circuit. (b) Repeat part...

In the circuit of Fig. P1.82 let R1 5 1.0 kV and R2 5 13 kV. (a) Assuming the Zener diode has VZ 5 5.1 V and all diodes have VD(on) 5 0.7 V, sketch and label the VTC of the circuit. (b) Repeat part (a) if the Zener diode direction is inadvertently reversed, so that the anode is at the top and the cathode at the bottom. (c) Repeat (a) if a resistance R3 5 39 kV is connected in parallel with the Zener diode.