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For the static rotor resistance control considered in the text for an induction motor drive, develop the fundamental frequency equivalent circuit of Figure 16.1.23.
In an op amp circuit, how is it possible that the power delivered to the circuit by two voltage sources is smaller than the power absorved by a load such as a resistor. How can the resistor absorve more power
A silicon p-n-p transistor has impurity concentrations of 5*10^18, 2*10^17, and 10^16 cm^-3 in the emitter, base, and collector, respectively. The base width is 1.0 um and the device cross-section area is 0.2 mm^2.
A 10-µF capacitor is charged to a potential of 100V. At time zero it is discharged through a 1-M ohm resistor. What is the time constant for this system
Show how truncating a signal affects its spectrum using both equations and pitures. What can one do to reduce the effects of truncation?
A)An amplifier has an input voltage of 0.5V and an output voltage of 12V.Calculate the increase in unit decibels. B)An amplifer has an input power 2W and an output power of 80W. Calculate the increase units of decibels.
A glass tube with a cross-sectional area of 9^-2 m^2 contains an ionizd gas. The densities are 10^15 positive ions/m^ and 10^11 free electrons/m^3. Under the influence of an applied voltage, the postive ions are moving.
1) Modern technology has produced a small 1.5-volt alkaline battery with a nominal stored energy of 150 joules. For how many days will it power a calulator that draws a 2-mA current 2)The current entering the positive terminal of an element is
the current flowing through a circuit is it4t3a. how much charge passes through the circuit element between 0 and 2
Discuss the advantages of transforming time-domain circuits into the corresponding frequency domain. How does this change the way circuits are analyzed
Draw a wiring diagram for this PLC that will be used as the controller for the situation of Exercise 3.
An IC NMOS transistor has W=100μm, L = 10μm,μnCox= 20μA/V2, VA= 100 V, γ = 1/2 V1/2, Vt0= 1V, and 2φf= 0.6V. calculate the value of Vt at VSB= 4V. Also for VGS=3V and VDS=5V, Calculate ID for VSD = 0V and for VSB = 4V
A digital communication system employs differentially encoded BPSK modulation scheme with non-coherent (differential) reception. If the Eb/N0 is 8 dB, what is the probability of bit error for the system
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