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(1) For the three transistor configurations namely, the common-eitter, the common-collector, and the common-base, compare the voltage gain and the current gain for each configuration.
Which configuration is the most popular and why?
(2) Why is it that when using transistors as switches the emitter resistor is always omitted?
What is the reason we use an emitter resistor when implementing amplifiers?
The battery is built by connecting several unit cells in series. Each unit cell has the voltage V1=1.4 V and the internal resistance Ri = 3.2 Ohm; 1) How many unit cells in series must the battery use to have the open-circuit voltage Vo.c. = 11.2 V
With the multi function gate: F = X'AB + YA'B + X'AB + YAB' 1. Can this gate be used as an inverter If yes, how 2. Will the change in the number of inputs or outputs affect the number of operation select lines Explain.
what is the magnitude and direction of the current flowing through the cross section?
We have an amplifier with a 1 MHz bandwidth and a 20 mV input signal. The input noise = 1 mV, output signal 6.0 mV, and output noise = 1 mV. Find: (a) SNR at the input (b) ..
A rod on the surface of Jupiter's moon Callisto has a volume of 0.3 cubic meters. Determine the weight of the rod in units of pounds-force. The desnity is 4,700 kilograms per cubic meter. Gravitational acceleration on Calisto is 1.25 meters per se..
A coaxial air line has an inner conductor diameter of 2mm and the inner diameter of the outer conductor is 4.6mm. A voltage of 1 V is applied to the inner conductor. Determine the surface charge densities on the inner conductor
Sketch the DFT(discrete fourier transform)for a square wave with frequency 1Hz and 10 Hz given N=64 and SR(sample rate)=128. Make sure to label your axes.
Probability of a False Alarm: Noise Power, The fixed threshold of a radar detector was set, assuming a known noise power, to yield P_FA = 10^-6
The transformer is supplying a load of 325 MVA, with 0.93 power factor lagging at a voltage of 24 kV (line-to-line) on its low-voltage side. It is supplied from a feeder whose impedance is 0.11 + j2.2 ohms connected
Write and test a C program that outputs a waveform that switches from 10.0 kHz with a 50% duty cycle to 25.0 kHz with a 5% duty cycle every 5 seconds. Your code design must be modular - initializations and program operations are to be performed
What is the function of the enable control input of a tri-state buffer If the output of two or more tri-state buffers is connected to each other, what is the restriction on enable control input lines What does happen when this restriction is viola..
an amplifier with a 1 MHz bandwidth and a 20 mV input signal. The input noise = 1 mV, output signal = 6.0 mV, and output noise = 1 mV. Find: (a) SNR at the input (b) SNR at the output (c) Noise figure
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