Determine all the nodal voltages and currents for each element in Figure 2, show that ∑?? = 0.
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Determine all the nodal voltages and currents for each element in Figure 2, show that ∑?? = 0.
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- Ic VCE R1 32K2 No Signal VBB Vcc 15 V Figure B24 Graph B24Dopant density (cm-³) 1021 1020 1019 1018 1017 1016 10¹5 1014 1013 10¹2, 10-4 10-3 10-¹ 10⁰ 10¹ 10² 10³ 104 Resistivity (ohm-cm) FIGURE 2-8 Conversion between resistivity and dopant density of silicon at room temperature. (After [3].) N type 10-2 P type EXAMPLE 2-3 Temperature Dependence of Resistance a. What is the resistivity, p, of silicon doped with 10¹7cm-3 of arsenic? b. What is the resistance, R, of a piece of this silicon material 1 um long and 0.1 μm² in cross-sectional area? c. By what factor will R increase (or decrease) from T = 300 K to T = 400 K? d. What As concentration should one choose if she wishes to minimize the change in (c)?Consider a PV Module with 24 solar PV cells with the Size of each 15cm x 10cm are connected in series. Choose the correct statement for the above. (Assume necessary data) a. The output voltage is 12 V, the output power is 540W b. The output voltage is 12 V, the output power is 54W c. The output voltage is 12 V, the output power is 5.4W d. The output voltage is 24 V, the output power is 2.25W
- Electrical Machines Q41 The NTC-type thermistor (NTC- negative thermal coefficient) has the characteristic curve shown below. F (a) (b) (c) (c) Resistance (k) 8 7- 6- 5- 4- 3- 2- I 0 10 20 30 40 50 60 70 80 90 Temperature (°C) What is the temperature when the resistance of the thermistor is 5 ks2? What is the resistance of the thermistor when the temperature is 80°C? Determine the value of the variable resistor that gives an output voltage of 3.0 V when the [Ans: 2000 £2] temperature is 80°C. Resistance = What happens to the value of the output voltage as the temperature falls and the TH variable resistor remains at a fixed value? Explain your answer.For Fixed Bias Configuration Solve for Ib, Ic and le. Atleast 2 decimal place. Be mindful of units. Assume Ic is not equal to le. ... 4 RC 15002 RB VCC 20V 90A/A 100k2 Ib=Blank 1 HA Ic=Blank 2mA le=Blank 3 mA Blank 1 Add your answer Blank 2 Add your answer Blank 3 Add your answer
- O * 33% A moodle1.du.edu.om e SIM aY The measured temperature is 173 OF and the reference is 45 °F. The voltage. in mV is Select one: O a. 4.643 O b. 4.097 O e. 3.732 O d. -3.732 Previous page Next pagei need it handwriting and how to simplfiy the equation plsA J- type thermocouple is used to measure the temperature in a heating process. Sheath material used is SS304. The length of the sheath is 11mm and thickness is 0.2mm. Find the time constant of the sheath. Material Q(kg/m3) s(J/Kg - oc) K(W/m-k) Platinum 21450 130 71.6 SS304 8030 500 21.4 SS316 7990 500 21.4 SS410 7750 460 24.9 Air 1.20 1005 0.025 MgO Powder 3580 877 26.8 Silicon compound 3210 800 3 Time constant of the bare material is, T= Answer
- For the network shown in Figure B22, assume E = 18V, Diode D1 as silicon and D2 Germanium, R1=2KQ and R2=3KN. Calculate, i. Current I1, Current In2 iii. Voltage across resistor R2 i. R1 D1 E D2 12 R2 Figure B22201503131 3. Two batteries with E, = 3V and E₂ = 5 V are connected with three resisters R₁ = 10 ohms, R₂ = 20 ohms and R3 = 30 ohms as shown in the Figure. (8-points) a) Find the currents I₁, I2 and 13 passing through the resistors R₁, R₂ and R3 consecutively and indicate their directions in the figure. (4-points) I Iz V.P 23 13 = I₁+I₂ R₂ 10 3 & 3-101₁-3013 =0 5-20 I 2-10 I₁ = 0 I R₁ ww R3 30 20 25i) | For the network shown in Figure B22 , assume E = 18V, Diode Di as silicon and D2 Germanium, R1-3KQ and R2-2KQ. Calculate, Current I1, Current Ip2 iii. Voltage across resistor R2 R1 D1 D2 R. +.