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- a) Sketch the power versus f plot for 0 s t s 80 element at t = 10, 30, and 80 ms. Figure P1.27 i (mA) 250 10 20 30 40 50 60 70 t (ms) -250- (V) 10 30 t (ms) 70 20 40 50 60 -8The relation between resistance R and temperature T for a thermistor (a device that measures temperature) closely follows R = Ro e[Beta (1/T - 1/To)] where R is the resistance in ohms measured at temperature K, and Beta is a material constant. What are the units of Beta and Ro? Clearly show how you decided on your answer.mobile battery during a charge cycle are shown in 1.26 The voltage and current at the terminals of an auto- Fig. P1.26. a) Calculate the total charge transferred to the battery. b) Calculate the total energy transferred to the battery. Figure P1.26 v (V) bnohostib 24 Loiwollol sd lo 16 8- 8. 12 16 20 t (ks) i (A) maxi 24 16 8- the che 4 8. 12 16 20 t (ks)
- QUESTION 8 Find the uncertainty in a calculated electrical potential difference from the measurements of current and resistance. Electric potential difference depends on current and resistance according to this function V(I,R) = IR. Your measured current and resistance have the following values and uncertainties I = 2.4 Amps, 81 = 0.2 Amps and R = 29.5 Ohms and SR = 0.6 Ohms. What is the uncertainty in %3! %3D the , SV ? Units are not needed in your answer.In the last column in the data table, it says that it's about voltage(v) divided by current(A) is equal to ohms so V/A = ohms. So if it's V/A and if you divide them to get the slope it's (y2-y1)/(x2-x1) then shouldn't V be the y value and A be the x value? And can you also try to use a line of best bit instead of drawing the line through each dot?OS. The output power of a solar PV module is 120 Watts. Number of cells in module are 36 Estimate the following: (take insolation value as 1100 W/m' and efficiency as 18% ) Total output voltage Total output current Total area of module iv. Area of one PV cell Calculate number of PV Modules required to generate power of 48OW. V. 益
- 1. 1500 200W 370 comple 150N Ř= ? IR = ? x = ? OB. 2. Given A(2, -3,1), B(0, 0, 2); and ((2, 2, 0), find 08.HW/2 0, If the switch in Fig. 10 opens at 1 , find v(7) for 7 = 0 and we(0). Answer: 8¢V, 533 1. =0 UV PQUESTION 6 Find the uncertainty in a calculated electrical potential difference from the measurements of current and resistance. Electric potential difference depends on current and resistance according to this function V(I,R) = IR. Your measured current and resistance have the following values and uncertainties 1 = 1.5 Amps, Sl = 0.2 Amps and R = 36.4 Ohms and SR 0.3 Ohms. What is the uncertainty in %3D the , SV ? Units are not needed in your answer.
- Use the data provided to find the slope of the Dy vs Vdy graph. Va is 1000 V.1) A meter reads 100.50 V and the true value of the voltage is 100.44 V. Determine the static error, and the static correction for this instrument. 2) A thermometer reads 69.5 C and the static correction given is +0.6C. Determine the true value of the temperature. 3) A thermometer is calibrated for the range of 100C to 150C. The accuracy is specified within +/- 0.25 percent. What is the maximum static error?Una barra esta empotrada en su extremo A, tiene una fuerza de 15 kN en el punto B y otra fuerza de 91 kN en el punto C. Determine la elongación o contracción en la barra AC, en mm, positivo para elongación y negativo para contracción. A = 0.0035 m² E = 200 GPa C A -5 m- 2 m B
