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Sketch the idealized Bode plot for Av = Vo /Vi for the low-pass filter of Figure.
Using the results of part a, sketch the response Av = Vo /Vi for the same frequency range.
Sketch the curve of AvdB versus frequency using the idealized Bode plots as an envelope for the actual response.
Sketch the phase response, and determine a frequency where the phase angle is relatively close to 45° .
Sketch the normalized Bode response A'vdB = (Av /Avmax|dB), and determine the bandwidth of the amplifier.
A transistor amplifier has a midband gain of 120, a high cutoff frequency of 36 kHz, and a bandwidth of 35.8 kHz.
If each phase impedance is changed to an 18-O resistance in parallel with an 18-O capacitive reactance.
What is the required increase in acoustical power to raise a sound level from that of quiet music to very loud music?
Using semilog paper, plot XL versus frequency for a 10-mH coil and a frequency range of 100 Hz to 1 MHz.
Find the power delivered to a load for an 8-dB reading.
Sketch the frequency response of Av = Vo /Vi against a log scale extending from 10 Hz to 10 kHz.
Determine Vo at a frequency one decade below the critical frequency.
Design an R-C low-pass filter to have a cutoff frequency of 500 Hz using a resistor of 1.2 kO.
Determine Av = Vo/Vi at two decades above fc .Is the rise in Vo significant from the f=fc level?
Determine Av = Vo /Vi at fc, one octave above and below fc, and one decade above and below fc.
Choose the closest commercial value for R, and then recalculate the resulting corner frequency.
Design a pass-band filter such as the one appearing in Fig. to have a low cutoff frequency.
Sketch Av = Vo /Vi for a frequency range of 1 kHz to 1 MHz.
Determine the frequency response of Av = Vo /Vi for a frequency range of 100 Hz to 1 MHz.
A balanced, three-phase, ?-connected load has a line voltage of 208 and a total power consumption of 1200 W at a leading power factor of 0.6.
The difference between the power factor of the load and the power factor of the entire system .
Determine the total wattage dissipation and the reading of each wattmeter.
If one wattmeter has a reading of 200 W and the other a reading of 85 W, what is the total dissipation in watts if the total power factor is 0.8 leading?
Sketch three different ways that two wattmeters can be connected to measure the total power delivered to the load .
Determine the magnitude and angle of the phase currents.