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The first ac power system in the USA ran at a frequency of 133 Hz. If the ac power for this system were produced by a 4-pole generator, how fast would the shaft of the generator have to rotate?
A photocell with a 35-ms time constant is used to measure light flashes. How long after a sudden dark-to-light flash before the cell output is 80% of the final level
A man has set up a Christmas display using 20 strands of lights (500 Watts/strand). If the man wants to wire the strand outlets to the house panel with a 30 amp breaker, Determine a) The number of 30 amp parallel circuits Cratchit will have to wire..
Connect a voltage divider to an output of a DC power supply. Design it to give an output that is 1/3 of the supply voltage. Furthermore, neither the power ratings of the resistors nor the current rating of the supply are to be exceeded.
An LTIC system is specified by the equation ( D2 +5D + 6) y (t) = ( D + 1) x (t) . (a) Find the characteristic polynomial, characteristic equation, characteristic roots, and characteristic modes for this system.
A wafer 100mm in diameter is mounted in an electron-beam evaporation system in which the spherical radius is 40cm. Use Eq. 6.7 to estimate the worst-case varation in film thickness between the center and edges
Design three versions of the combinational circuit whose input is a4-bit number whose output is the 2's complement of the inputnumber, for each of the following cases: a) The circuit is a simplified two-level circuit, plus inverters asneeded for th..
The column line parasitics are 1 Ohm/bit and 12 fF/bit. Determine the minimum number of repeaters which must be inserted into the row lines such that the overall access line will be reduced to less than 0.2ns.Consider a DRAM with 2^X bits. Rw = 65 ..
Derive a minimum-cost realization of the four-variable function that is equal to 1 if exactly two or exactly three of its variables are equal to 1; otherwise it is equal to 0!
explain from an atomic viewpoint why the charges that are transferred during the buildup of electrostatic charges
Distribution systems are normally operated as radial networks and a simple iterative procedure can be used to solve load flows in them. One of the common methods used is the forward and backward method. The procedure used in this method is?
An amplifier has an open-circuit voltage gain of 1500, an input impedance of 3 kΩ, and an output impedance of 300 Ω. Find the voltage and power gain of the amplifier in decibels when a load impedance of 200 Ω is connected to the output of the ampl..
Electricity is distributed from electrical substations to neighborhoods at 15,000 Volts, to a transformer on utility poles near homes, where is it stepped down to 120 Volts for household use.
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