A thermopile is constructed with chromel-alumel materials. Five junctions are maintained at 400°C and five junctions are maintained at 100°C. The output of the thermopile is connected to a potentiometer. Answer the following questions: a) Draw the equivalent circuit and indicate all the given information. b) What is the voltage induced by the potentiometer? Given: Table 8.3a Temperature, °C -150 -100 -50 -25 0 25 50 75 100 150 200 300 400 500 600 800 1000 1200 1500 1750 Thermal emf in absolute millivolts for commonly used thermocouple combinations, according to ITS(90) (Reference junction of 0°C)¹ Copper vs. Constantan (7) -4.648 -3.379 -1.819 -0.940 0 0.992 2.036 3.132 4.279 6.704 9.288 14.862 20.872 Chromel vs. Constantan (E) -7.279 -5.237 -2.787 -1.432 0 1.495 3.048 4.657 6.319 9.789 13.421 21.036 28.946 37.005 45.093 61.017 76.373 Iron vs. Constantan (J) -6.500 -4.633 -2.431 -1.239 0 1.277 2.585 3.918 5.269 8.010 10.779 16.327 21.848 27.393 33.102 45.494 57.953 69.553 Platinum vs. Chromel vs. Platinum-10% Alumel (K) Rhodium (S) -4.913 -3.554 -1.889 -0.968 0 1.000 2.023 3.059 4.096 6.138 8.139 12.209 16.397 20.644 24.906 33.275 41.276 48.838 -0.236 -0.127 0 0.143 0.299 0.467 0.646 1.029 1.441 2.323 3.259 4.233 5.239 7.345 9.587 11.951 15.582 18.503 Nicosil vs. Nisil (N) -1.530 -1.222 -0.698 -0.368 0 0.402 0.836 1.297 1.785 2.826 3.943 6.348 8.919 11.603 14.370 20.094 26.046 32.144

Rectifier   determine the following show complete solution

8. Draw the output waveform for the circuit shown below given Vin(pp)=20V. Write the name of the circuit. D1 and D2 are Germanium Diodes. R2 D1 D2 V82 1.8V 2 10k VIN V81 T2.2V

The three-phase circuit shown in figure 1 is 220 Vrms per phase and 50Hz. Diodes are real. The circuit produces an output shown in Figure 2. Indicate the conduction angle of diode D5. What times does this conduction correspond to? Use the first cycle only (0-360°). to-0 sec.