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A 480-120 volt, 5kVA, 2-winding transformer is to be used as an autotransformer to supply a 480-volt circuit from a 600-volt source. When tested as a 2-winding transformer at rated load, 0.8 pf lagging, its efficiency is 0.965.
Show a diagram of connections as an autotransformer. On the diagram show polarities and current directions.
Design, simulate and program a 4-bit, 8-function ALU to implement the operations F2 F1 F0 Output Function S0 - S4 0 0 0 Output = A Input S = A 0 0 1 Output = A Complement S = NOT A 0 1 0 Output = A Plus B S = A + B0 1 1 Output = A Minus B S = A - B
Design a combinational circuit that takes two 3-bit binary numbers a2a1a0 and b2b1b0 and generates Modulo-8 addition. Recall that the MOD operation produces the remainder value in an integer division. (Note: Do not use any CAD tool.
An underdamped sensor with a static sensitivity of K=1, undamped natural frequency of omega=1400 rad/s, and damping ratio of zeta=0.5 is used to measure a sinusoidal signal with a frequency of 6 kHz.
Consider a square house 40 ft on a side, 10 ft high, with a flat roof on top and walls/roof that is 8 inches thick. The thermal conductivity for an un-insulated wall or roof is 1.6 W/Km, while with fiberglass insulation its 0.04 W/Km.
A torque of 10 N.m is applied to a uniform disk shaped flywheel. The flywheel has a mass of 20kg and a radius of 0.5m. At t=0, the flywheel is at rest. How much energy is stored in the flywheel at the end of 20 sec
If AC is a sine wave and DC is a straight line, what would the wave look like on a graph if they combine. How/what to calculate to get this new waveform.
A ball is dropped from a height of 10 feet. Each time it strikes the ground, it bounces up to 80% of the previous height a.What height will the ball bounce to after it strikes the ground for the third time b.How high will it bounce after it strikes ..
If the emission, factor of producing electric power by PV cells is 100 g of CO2 per kWh, by wind power is 15 g of CO2 per kWh, and by coal is 1000 g of CO2 per kWh, then find the ratio of CO2 emission when a) 15% of power comes from wind farms
Determine the position x and the tension in the cord that is required for equilibrium. The cord passes through the smooth ring at B and has an unstretched length of 6ft and stiffness of k = 50lb/ft.
Zener diode, Can You show me how to solve the following: If a 5k resitor is connected between the cathode of a 6.2V ZENER diode and a 12V power supply.
(a) Determine the steady state error for a unit step input R(s) = 1 / s. (b) Assume that the complex poles dominate, and determine the overshoot and settling time to within 2% of the final value.
A µ-law compression encoder has: Vi(max) = 8 V, vi(max) = 1V, µ = 255 Determine the output voltage for an input voltage of 2 V
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