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Refer to the RLC series circuit shown in Figure.
(a) What is the maximum output voltage vO (t) and at what frequency does it occur? Use Multisim and do an ac sweep from 10 Hz to 1 MHz, and then narrow your sweep until you find the frequency at which the peak occurs and the output voltage at that frequency.
(b) Bandwidth is defined as BW = fH - fL, where fH is the higher frequency at which the magnitude of the output is exactly 0.707 of the maximum value, and fL is the lower frequency at which the magnitude of the output is exactly 0.707 of the maximum value. What is the bandwidth of this circuit?
(c) What is the minimum output voltage vX(t) and at what frequency does it occur? Use Multisim and do an ac sweep from 10 Hz to 1 MHz, and then narrow your sweep until you find the frequency at which the minimum occurs and the output voltage at that frequency.
When a sinusoidal signal is used to frequency modulate a VHF carrier, the required bandwidth is 200 kHz. It is desired to retain the same modulation index while reducing the necessary bandwidth to 100 kHz.
What is the actual power capacity?
What is the phase angle at this frequency? - What is the slope of the magnitude plot for f » fT? - What is the phase angle in this frequency range?
The resistance of the shunt field winding and the resistance setting of the shunt field rheostat of a separately excited generator are 10.26 ohm and 14.23 ohm respectively. The field circuit is connected to a 120-V DC source.
Use the amplifier of Example 12.4 in a balanced configuration operating from 3 to 5 GHz. Use quadrature hybrids, and plot the gain and return loss over this frequency range. Using microwave CAD software, optimize the amplifier matching networks to..
If heating process is done irreversibly, determine the total irreversibility for process if the surface temperature of the vessel is maintained constant at 300.°F and the change in total availability of the water if the local environment is at 14...
Specify bias currents, minimum Early voltages, and the minimum output impedance of the current source. - Design the current source to achieve the required output impedance.
What is the symbol rate and what is the bandwidth occupied by the 16-QAM signal? The link must maintain a BER no higher than 10^-6. What is the minimum CNR in the receiver to meet this requirement?
A volume charge density of K Coulombs per cubic meter resides uniformly within the material of a long cylindrical shell whose inner radius is 1 m and whose outer radius is 3 m. Find D and E in all regions.
A certain coaxial cables is designed to handle extremely high voltages. In order to prevent dielectric breakdown the electric field (E-field) must be minimized.Calculate the correct value of B to A to minimize the electric field.
A 3.0 μF capacitor is charged to 40 V and a 5.0 μF capacitor charged to 18 V are connected to each other, with the positive plate of each connected to the negative plate of the other. What is the final charge on the 3.0 μF capacitor
While both triangular and sawtooth waveforms work in a PWM modulator, it does affect the phase of the PWM output and being able to control this can be useful. Consider your resistor and capacitor choices for the 555 timer circuit.
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