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What is the reciprocal of the slope (in mV/decade) of the logarithmic transfer characteristic for an npn transistor in the common-emitter configuration at a temperature of
(a) 200 K,
(b) 250 K,
(c) 300 K and
(d) 350 K?
How do you calculate the input resistance and output resistance with out feedback. And why are the resistances of the beta network part of the calculation for the input resistance with out feedback
A copper wire has a resistance of 2.00 ohms at 20 degreesCelsius, what is it's resistance at 70 degreesCelsius
For the capacitor network shown in the Figure, the potential difference across ab is 220 V
The ADC requires a 10-V input voltage for full-scale binary output. If an amplifier is placed between the potentiometer and the ADC, what amplifier gain should be used to take advantage of the full range of the ADC?
1. Calculate the Fourier transform of f(t)=5 sinc ([t-0.2]/2), and graph the magnitude and phase as function of f. 2. A military satellite uses 10 GHz for the downlink frequency. The distance to the satellite is approximately 36000 km.
The overall gain of a -ve feedback amplifier is 100. If the gain of the amplifier device itself is 1000. a) find the loop gain b) calculate the feed back factor β c) how much percentag error results if the overall gain is estimated from β alone
A complex voltage waveform is composed of harmonics and is described by the following expression: v = 200 sing(ωt + π/6) + 150 sin (2ωt - π/3) + 75sin(3ωt + π/5) V, The fundamental frequency is 500 Hz. Determine the current expression flowing in each..
Consider the function f which has four inputs a,b,c,d and one output such that the output is a 1 if and only if the number of 1s in the inputs is even. (a) Write the canonical product-of-sums expression for f. Do not use the shorthand notation
Writing the mathematical equations of a DC motor develop the complete model to derive the open loop transfer function between the operating speed and applied voltage.
1. can a transformer ratio LTC control MW or Mvar power flow on a parallel transformers 2.what test is used to calculate a transformer through fault impedance 3. List three design or operating factors which make a generator more stable
Obtain the z transform and find the z transform - solve the problem for the first 30 samples. Plot both analytical and the numerical results in the same figure.
For a transfer function with a pair of complex zeros located on the j (omega)-axis, what happens to the frequency response as the frequency applied to the system approaches the value at which the zeros are located
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