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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 amplifier.
Calculate the short-circuit current in the feeder and the voltage of the 400 V busbars when a symmetrical three-phase fault occurs at the far end of the feeder. That fault level of the 11 kV system is 100 MVA.
If a standard telephone quality analog-to-digital converter has an input range of 4 Vpp and an output data rate of 128 kbps, then what is the voltage range for each quantization level
Justify the rationale of this second approach
To reduce confusion, the base can be denoted by a subscript. Hint: See the footnote on p. 248 in Section 7.4.
Finding rms current through Capacitor and Inductor, A circuit consists of a sine wave signal generator and a reactive component (L or C). The output of the generator is a sine wave with a peak amplitude of 8.8 volts at a frequency of 10.0 kHz.
Determine the frequency resolution when the data length is 73 samples. Without using the window function, is there any spectral leakage in the computed spectrum? Explain.
Using a 3-V power supply, design a version of the circuit of fig 6.62 from the book. to provide a dc emitter current of 0.5 mA and to allow a +-1-V signal swing at the collector. The BJT has a nominal B=100. Use standard 5 % resistor values
Describe what changes the engineer should make to either the flow rate of the coolant or the steam to keep the system functioning optimally.
A large reel of paper installed at the end of a paper machinehas a diameter of 1.8m, a length of 5.6m and a moment of inertia of4500 kg-m2. It is driven by a directly coupled,variable-speed DC motor turning at 120 rpm. The paper is kept undera con..
A synchronous generator is running overexcited with Ef = 1.4 p.u. This machine, with a synchronous reactance of 1.20 p.u., is delivering a synchronous power of o.50 p.u. to the bus.If the prime-mover torque is increase by 1%, by how much will the syn..
The voltage on a 40 µF capacitor is found to be 12(1 - e-8t) volts. Find the voltage at t = 0, and the voltage at t = 0.1 second. How much energy is stored on the capacitor as t approaches infinity
The power supplied by a certain battery is a constant 6.0 W over the first 5 minutes, zero for the next 2 min, a value that increases linearly from zero to 10 W during the next 10 minutes, and a power that decreases linearly from 10W to zero in th..
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