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- The two 8-point sequences G, Cn) Shoun in figuse have DFTS X,(k) and X2(K) respectively. Deteomine the relationship between X, (K) and X2 (K). and XG Cn) a フn O' 1 234 5 6 7 8 Xq [n] ge a 0 123 4 5 6 7 8 (figure 1)Consider a PV Module with 4 solar PV cells with the Size of each 10cm x 10cm are connected in Parallel. Choose the correct statement for the above PV Module. (Assume necessary data) a. The output voltage is 0.5 V, the output power is 12W b. The output voltage is 2 V, the output power is 12W c. The output voltage is 12 V, the output power is 6W d. The output voltage is 0.5 V, the output power is 6W= 0.6 V Determine IC(sat) in the following circuit. Assume VCE(sat) = Rc E1.0 kN RB Vcc BDc = 50 %3D 10 V 10 kN VBB 3 V mA 1.6 A O mA 9.2 B O mA 12.8 C O mA 9 4 D O
- You are working as an electrician in a large steel manufacturing plant, and you are in the process of doing preventive maintenance on a large DC generator. You have megged both the series and shunt field windings and found that each has over 10 M to ground. Your ohmmeter, however, indicates a resistance of 1.5 across terminals S1andS2. The ohmmeter indicates a resistance of 225 between terminals F1andF2. Are these readings normal for this type machine, or is there a likely problem? Explain your answer.Consider Two same size PV Modules which are connected in Parallel. The specification of each module is given as: Number of cells = 36, Area of each cell is 12 cm x 12 cm. (Assume the necessary data) Choose from the following the correct statement. a. The output voltage of this panel is 18 V, the output power is 155W b. The output voltage is this panel 18V, the output power is 75W c. The output voltage is this panel 36 V, the output power is 155W d. The output voltage is this panel 36 V, the output power is 75W12. i) Consider a PV Module with 12 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 6 V, the output power is 275W b. The output voltage is 6 V, the output power is 0.275W c. The output voltage is 6 V, the output power is 27.5W d. The output voltage is 24 V, the output power is 2.25W 12. ii) For the above given same PV Module, Choose the correct statement. (Assume necessary data) a. The output power is 2.75W and the output current is 0.458A b. The output power is 27.5W and the output current is 4.58A c. The output power is 54W and the output current is 4.5A d. The output power is 275W and the output current is 45A
- Exe: The single-phase bridge rectifier has an RL Load and an ac source, with R = 10Ω andL = 10mH. The peak value of the source is Vm = 100V at 60 Hz. The expressions of voltage andcurrent outputs are:(a) Determine v0(t) and i0(t) with two ac terms (n=2 and 4)(b) Determine the power absorbed by the load.Use the following constants if necessary. Coulomb constant, k = 8.987 x 10° N - m² /C2. Vacuum permitivity, co = 8.854 x 10 12 F/m. Magnetic Permeability of vacuum, Ho = 12.566370614356 x 10-' H/m. Magnitude of the Charge of one electron, e = -1.60217662 × 10–19 C. Mass of one electron, me = 9.10938356 x 10 31 kg. Unless specified otherwise, each symbol carries their usual meaning. For example, µC means micro coulomb. a R5 R3 e R9 R, R6 R8 Ry K Suppose you have the following circuit diagram. Here R1 =1.1 kN, R2 = 3.3 kN, R3 = 2.2 kN, R4 = 22 kN, R5 = 22 kN, Rg = 11 kN, R7 = 11 kN, Rg = 11 kN, R9 = 1.1 kN are the resistances on the circuit where kN stands for kilo ohm. The electromotive forces of the batteries are & = 5 volts and Ez = 3 volts. a) Calculate Rik. the resistance equivalent to R5, Re, R7, Rg and R9 between the terminals b and k. Value of Rhk Give your answer to at least two significance digits. Ω b) Calculate the current through R1.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 PV Module. (Assume necessary data) a. The output power is 2.25W and the output current is 0.09A b. The output power is 540W and the output current is 45A c. The output power is 54W and the output current is 2.25A d. The output power is 54W and the output current is 4.5A
- 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 pageGiven 3 parallel thermal units U1, U2 and U3 where their input-output fuel functions are as follows: Input-Output function (MBtu/h) Fuel Cost ($/MBtu) 1.0 H₁ (P₁) 250+ 3*P₁ +0.025*P₁² H₂(P₂) = 140 + 0.8*P₂ +0.006*P₂² H3(P3) = 375 +1.25*P3 + 0.01*P3² Unit 1 2 3 Select one: Ⓒa. OMW O b. None of these O c. 500MW O d. 800MW In load period 1, the available spinning reserve is: 2.5 1.2 300 500 600 1075 Min MW Max MW No start-up costs; no minimum up- or downtime constraints are considered. The unit commitment of these 3 units is to be solved using the priority list method based on the full load average fuel costs. The below table showing the load over 4 periods in time (Note: a unit's status is 1 if the unit is ON, and 0 if the unit is OFF): Period t Pload (MW) U1 U2 U3 Max MW Spinning Reserve 1 2 3 4 100 150 75 200 600 300Consider a pn junction in forward-bias at room temperature. lo obtain a current of 1mA with a voltage of 750 mV, Calculate Is V₁- 26 mV Select one: O a. None of these O b. 297 x 10¹5 A OC 297x10¹7 A Od 297x10-¹ A