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120V, 60 Hz source is connected to a distribution line whose resistance, and inductive reactance is 0.001Ohm, j0.002 Ohm, respectively. Single phase, 100HP, 120V, 0.85 pf. motor; and 100Kw, 120V heater are connected in parallel.
Find The value of the capacitor to improve the power factor to unity. (connect the capacitor in parallel with the load to improve the power factor)
Determine the Laplace transform of the above signals (use properties of the Laplace transform) including the corresponding region of convergence.
The following heat engines produce power of 95,000 kW. Determine in each case the rates at which heat is absorbed from the hot reservoir and discarded to the cold reservoir. A Carnot engine operates between heat reservoirs at 750 K and 300 K.
Design a single state amplifier that satisfies the following specifications. State the transistor used and show all equations. 1. The voltage gain is greater than or equal to 0.9 and less than or equal to 1.0 2. The source resistance is 10k ohms
A pn-junction is uniformly doped and has dopant concentration of NA = 4 x10^16 cm-3 in the p-region at 300K. AT zero bias, 20% of the total space charge region (W) is extended in the p-region. Calculate Vbi, ND, W, xn and xp.
A room has four doors and four light switches (one by each door). Sketch a circuit that allows the four switches to control the light - each switch should be able to turn the light on if it is currently off, and off if it is currently on.
Design a 2-bit multiplier using 2-input AND gates along with 2-input OR gates and inverters. Hint: start with a truth table and keep in mind that there are four inputs and four outputs. The numbers to be multiplied can be represented
A lottery winner got $350,000 that invested as follows: part of it in a money market account, part in municipal bonds, and part in a mutual fund. After one year, he recieved a total of $24,200 in simple intersest from the three investments.
For input signal voltages between these limits, the input should pass unaltered to the output. The peak current drawn from the input source may not exceed 1mA. You may use any circuit component we've studied except opamps.
For the LCD configured in 8-bit mode, describe the signal conditions for CSB, E, RS, R/W~, and the data bits (D7 thru D0) needed to write the letter character ‘A' from the microcontroller into the LCD module.
A 5 horsepower dc mahine is supplied with 120 V dc and delivers rated power at 1000 rpm. The machine has an efficiency of 80 %. What is the developed torque at the output
In a typical mobile communications base station (or cell site), a radio frequency (RF) signal is amplified in the base station and then sent (over cable) to the antennas at the top of the tower.
Explain the relationship between the input and the output ac signals for a n-channel BJT voltage-divider bias. What components/parameters does the voltage gain depends on
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