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An amplifier has an open-circuit gain of-60, an input resistance of 8 k Ω, and an output resistance of 2 k Ω. A microphone transducer source is connected to the amplifier Input and has a source output resistance of 2 k Ω, and a speaker load is connected at the amplifier outputs having a resistance of 10 k Ω. Determine the following
a. Draw an equivalent circuit model showing the amplifier, source and load.
b.Calculate the loaded voltage gain between the source open-circuit voltage and the amplifier output.
Power Systems Theory Definitions and Formulas, Define, (a) The fault level of a system or unit in a system, (b) base MVA
In the most probable situation corresponding to the final thermal equilibrium, how is the energy Et of systemA related to the energy Et' of system A' ?
1. Determine the peak-to-peak current ripple in the output inductor for a forward converter and determine the output voltage ripple of the converter. We know the following parameters: duty cycle d, input voltage Vin, turn ratio.
For the following signal x[n] = ( 1 0 n 4 0 otherwise (a) Compute its spectrum following the definition of the Fourier transform. (b) Obtain its magnitude spectrum in one period . Note: pay attention to that the magnitude must be positive.
A 10 kHz signal modulates a 500 MHz carrier, with a modulation index of 2. What are the maximum and minimum values for the instantaneous frequency of the modulated signal
If a cache being simulated were allowed to have a block size of 4 bytes, what optimization would be possible for blocks of that size that is not possible for block sizes 8 bytes and above
Let X be a random variable uniformly distributed on [-2,2]. Define the random variable y=g(x), where g(x) { x+1 : x >= 0 { x-1 : x
Design an active first-order RC low-pass filter (using a 741 op-amp) with a cut-off frequency of 10 kHz and a band-pass gain of 20 dB. Derive the step response and voltage transfer function.
An electron has an initial velocity of (12.0j + 15.0k) km/s and a constant acceleration of (2.00 x 1012 m/s2)i in a region in which uniform electric and magnetic fields are present. If B = (400μT)i, find the electric field E.
The inputs to 74148 encoder, using Quartus names, are EIN is HIGH, 0N is HIGH, 1N is LOW, 2N is LOW, 3N is LOW, 4N is LOW, 5N is HIGH, 6N is HIGH, and 7N is HIGH.
A particle travels along the x-axis with postion ( measured in meters ) as a function of time ( measured in seconds ): x(t) = 5t^2-7t+2. (a) At what time or times is the particle at rest
Three-phase inverter has Y-connected load of 10 ohm and 23mH inductance. The inverter frequency is 60Hz and the dc input voltage is 200v. Calculate line voltage rms? , Phase voltage, rms?
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