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Consider a source of voltage
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Chapter 3 Solutions
MindTap Engineering for Glover/Overbye/Sarma's Power System Analysis and Design, 6th Edition, [Instant Access], 1 term (6 months)
- Example Question 1 A dynamometer-type AC ammeter made of moving coils and fixed coils with a shunt is used to measure current. The ammeter is designed to let 95% of the input curent flow through the shunt resistor. The moving coil's resistance is 10 2, and the shunt resistance is 0.004 2. The Table Q1 below gives the relation between the deflection and the mutual inductance of the ammeter. Table Q1 Deflection 2.44 (radian) (full- scale) 0.26 0.52 1.05 1.57 1.83 2.09 Mutual Inductance -325 -260 -180 180 263 325 373 (µH) If the input current that gives the full-scale deflection is = 6.7A, determine the following: (i) (ii) (iii) the current passing through the moving coil at full-scale deflection, the deflecting torque that gives full-scale deflection, the current passing through the fixed coil at half-scale deflection. (Hint: Plot the Mutual Inductance vs. Deflection graph based on the table above. Then, use the graph to solve parts (ii) and (iii))arrow_forwardSuppose we have an 80-lb lead-acid battery. 10% of the weight of the battery is active material on the plates, i.e., we have a total of 8 lb of active Pb and PbO, on the plates that can be used to make electric power. Use the Gibbs free energy method to estimate the total stored energy in the battery. Assume that the open circuit voltage for a lead-acid cell is 2.1 V. [The answer should be a little less than 1 kilowatt-hour of energy.]arrow_forwardTwo steel columns P (LengthL end yield strength = 250 MPa) and a (length 2L and yield strength = 500 MPa) have the same cross-sections and end- fy conditions. The ratio of buckling load of column P to that of column Q isarrow_forward
- B. A 1.5m dipole transmitting antenna located with its eenter at the origin and radiates RF signal with frequency 0.1GHZ. A second dipole receiving antenna of length 0.75m is placed in such a way that its axis is purallel with first one at distance 400m, the delivered power in the receiving antenna is -38. 92d3. What is the transmitting power in watts from transmitting antenna?arrow_forwardEx) A standard two-junction thermocouple configuration is being used to measure the temperature in a wind tunnel. The reference junction is held at a constant temperature of 10 °C. We have only a thermocouple table referenced to 0 °C. Determine the output voltage when the measuring junction is exposed to an air temperature of 100 °C. Junction Temperature (°C) Output Voltage (mV) 10 0.507 20 1.019 30 1.536 40 2.058 50 2.585 60 3.115 70 3.649 80 4.186 90 4.725 100 5.268arrow_forwardFind the outer radius of a coaxial cable whose characteristic impedance is 10Ω. The inner radius and the dielectric constant are 0.08m and 0.5 respectively.arrow_forward
- Analysis 2: The voltage potential, v(t), builds up on the loops, based on the orientation of the magnetic field during an MR scan is given by: v(t) = 0.250t4 + 0.166t3 – 0.500 and the voltage at time t= 0 is 0.arrow_forward1) Given the sinusoidal voltage v(t) 50 cos(30t + 10°) V, find: (a) the amplitude Vm, (b) the period T, (c) the frequency f, and (d) v(t) at t= 10 ms.arrow_forwardUSE MATLAB TO SOLVE THE PROBLEM A resistor of resistance R is supplied by a battery which consists of voltage source E in series with an internal resistance r. Plot the power P as a function of the resistance R for 1 Narrow_forwardElectromagnetic Pulse propagating at oblique angle to a dielectric interface Consider a gaussian wave pulse propagating along the z-axis from region 1 with refractive index n1 and onto a dielectric interface y = m z (for all x). To the left of this dielectric interface, the refractive index is n2. Devise an initial value computer algorithm to determine the time evolution of the reflected and transmitted electromagnetic fields for this pulse. e.g., n1 = 1 , n2 = 2 initial profile (t = 0, with z0 < 0) Ex = E0 exp[-a (z-z0)^2] By = n1 * Ex Choose parameters so that the pulse width is at least a fact of 8 less than the z- domain of integration ( -L < z < L). For the slope of the interface, one could choose m = 1.arrow_forwardFind the impedance theoretically of a wire if it carries the frequency 10 kHz have a voltage is 8v, the current is 2mA, resistance is 13 k, inductance 29 mH and capacitance 0.1 ufarrow_forwardDesign a wide flange W column 8 m in height to support an axial dead load of 1000 kN and a live load of 1200kN in the interior of a building. The column base is rigidly fixed to the footing and the top of the column isrigidly framed to very stiff girders. Assume that bracing is provided to prevent side sway in the weak axis/planeof the column (you don’t have to consider slenderness in this direction), but side sway is not prevented aroundits strong axis. Select an economical W shape.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- Operations Research : Applications and AlgorithmsComputer ScienceISBN:9780534380588Author:Wayne L. WinstonPublisher:Brooks Cole
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