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1. Draw the two equivalent circuits (ideal and second approximation) to represent a transistor that is operating in the active region. Then, tell me when and how you would use these circuits to calculate the transistor currents and voltages.
2. Draw a transistor circuit with a CE connection. Now, what kind of troubles can you get with a circuit like this and what measurements would you make to isolate each trouble?
A 65volt neon lamp is connected across a 8h coil with aresistance of 275. When the coil's field collapses, a 6k resisteris inserted into the circuit in series with the coil. The source is 25 volts D.C.
The electric current in a microprocessor circuit is 0.360 uA. How many coulombs pass a given point in the circuit in 2.30 ms
It is desired to run the motor in the previous problem with a power factor of unity. To achieve this, a capacitor C is connected in parallel across the motor, which results in a circuit like that shown in Fig. 2.13. Calculate the value of C to ach..
A metal plate is subjected to tensile stresses of sigma x = 21 ksi and sigma y = 17 ksi. The corresponding strains measured in the plate are Ex=920 µE and Ey=620µE. Determine Poisson's ration v and the elastic modulus E for the ..
Let f(a,b) = b' + a. (a) Derive the truth table for f. (b) What is the canonical sum-of-products expression for f? Do not use the shorthand notation. (c) Prove by Boolean algebra that the original expression is the same as the canonical SOP expres..
From the results, determine whether the greatest change in resistance per unit change in temperature occurs at lower or higher levels of temperature. Note the vertical log scale.
Determine the ohmic value of the impedances.- Calculate source current in amperes and in percent if generator operating voltage is 3.8 kV and a reactance of X=125% is connected in series with the generator voltage.
The transfer function of a system is formulated as H(f)=2f^2+i3f+2. Calculate the output signal for the input signal below which was applied to this system Vin(t)= 5+2cos(20(pi)t+30degrees)+sin(10(pi)t)
Determine the W/L ratios of the transistors to provide for symmetrical switching based on the CMOS inverter design.
Design an appropriate value of VR. State the reason for your selection. - Determine the value of RC1 such that, when Q1 is on, the current in RC1 is one-half that in D1.
A motor is supplying 60 N · m of torque to its load. If the motor's shaft is turning at 1800 r/min, what is the mechanical power supplied to the load in watts In horsepower
Describe the properties of donor and acceptor dopant atoms and how they affect the densities of charge carriers in a semiconductor material.
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