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An FM modulator has output
a. Sketch the phase deviation in radians.
b. Sketch the frequency deviation in hertz.
c. Determine the peak frequency deviation in hertz.
d. Determine the peak phase deviation in radians.
e. Determine the power at the modulator output
How is an infrared signal generated in a remote controller of a TV?
Using the expression relating the rate at which current changes in an inductor to the voltage produced at it, find the voltage across the inductor when a switch supplying 7.9 A to a 2.4 mH inductor is suddenly opened.
A Fabry-Perot interferometer is to be used to resolve the mode structure of a He-Ne laser operating at 632.8 nm. The frequency separation between the modes is 150 MHz. The plates are separated by an air gap and have a reflectance of r^2=0.999.
The potentiometer is designed to rotate 330 degrees to give the full range of possible resistance. However, the actual measurement range that is used is only 165 degrees indicating positions of a liquid sensor float ranging from 0 to 10 cm (empty ..
The configuration is shown in Figure 6.5. Use six LEDs as shown in Table 6.1 to represent the outputs. The Time in This State can be met in several ways. One method is to use a debounced switch as input, another to input a 1 Hz clock.
Develop the Boolean equations for a T type Flip Flop realisation and draw the schematic circuit
Describe the characteristics of the series RC filter circuit with the outpu across the resistive component. Distinguish the pass and stop bands with reference to the cutoff frequency. Also state what happens to the circuit complex impedance at the..
1. Choose a sampling rate of Fs = 40 kHz. 2. Create a vector t of 32768 time-sample points spaced according to this Fs, starting at 0 seconds. 3. Compute a vector x of 32768 samples of a 5400 Hz sinusoid with amplitude of square root of 2.
·Insulators are a vital part in transmission system they held the overhead transmission line and provide a mechanical support besides they act as an electrical insulator to insulate the line from the supporting system ( pole, tower...etc.)
A coil has an inductance of 400 mH and aresistance, RL, of 10 Ω. The coil is connected in series with a 100 Ω resistor Racross a 240V - 50Hz supply voltage V. Sketch the circuit diagram and phasor diagram; take V as the reference phasor.
Gaussian White Noise with Power Spectral Density Sn(f) = 10 mu W/Hz is applied to a linear system with impulse response h(t) = exp(- |5t|)u(t)cos(2 phi 10t) Write the equation for the Power Spectral Density of the noise passed through the system
Determine the minimum oxide thickness in the field region (the field-oxide thickness) needed to prevent current leakage between neighboring MOSFETs. Neglect the oxide charge, and consider aluminum gate (the worst-case scenario).
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