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1. While troubleshooting a power supply, you find a resistor burned black. A measurement shows that the resistor is open. Should you replace the resistor and turn the supply back on? If not, what should you do next?
2. For a bridge rectifier, list three possible faults and what the symptoms of each would be.
Calculate the surface charge density induced on the plate as a function of the radius r from the foot of the perpendicular drawn from the charge.
Construct a table that contains all possible combinations of results and determine the probabilities of getting 0 true outcomes, 1 true outcome, 2 true outcomes, 3 true outcomes, and 4 true outcomes.
Design a circuit that sounds an alarm if motion is detected in more than one room at a time. Show all design steps (truth table or equation(s),minimization using K-map(s), and logic diagram(s).
If the fundamental frequency of a square wave is 10 kHz, what are the first three frequency components contained in the square wave
A 3-phase synchronous generator rated at 75 MVA, 13.8 kV (L-L) is connected to a power system that has a Thevenin equivalent of j0.23 per unit at 1.0 per unit voltage. The synchronous reactance of the generator is j1.35 per unit.
Because A - B = A + (-B), the subtraction of signed numbers can be accomplished by adding the complement. Subtract each of the following pairs of 5-bit binary numbers by adding the complement of the subtrahend to the minuend. Indicate when an over..
Ignoring losses in this generator, what torque must be applied to its shaft by the prime mover at these conditions?
An amplifier operating from a single 15-V supply provides a 12-V peak to peak sine wave signal to a 1-k ohm load and draws negligible input current from the signal source. The dc current drawn from the 15-V supply is 8mA.
The extruded aluminum beam has a uniform wall thickness of 1/8 in. Knowing that the vertical shear in the beam is 2 kips, determine the corresponding shearing stress at each of the five points indicated.
Calculate the following: A. What is the magnitude of the voltage in a wall socket if the effective voltage is 240 Vrms B. What is the magnitude of the current if the effective current is 360 mA rms
Determine the magnetic field B at the point P (You do not need to derive any formulae that you use for fields due to current elements with standard shapes).
Use the amplifier of Example 12.4 in a balanced configuration operating from 3 to 5 GHz. Use quadrature hybrids, and plot the gain and return loss over this frequency range. Using microwave CAD software, optimize the amplifier matching networks to..
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