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An AM signal is to be demodulated by an envelope detector. The message is band limited to 5 kHz and the carrier frequency is 100 kHz. Give the limits on the detector time constant to avoid significant distortion
What is Thyristor and SCR (Silicon Controlled Rectifier) and its Construction , and mention the Difference between Thyristors and Transistors .
How can the sequence of spectra in Illustration 86 be explained by means of the Symmetry Principle SP?
Approximating this set of motions by a constant deceleration, what is the maximum g experienced by the parachutist?
(a) Find and sketch the spectrum of the information signal. What is the bandwidth of the information signal (choose an appropriatedefinition for the bandwidth in each case) (b) Write a time-domain expression for the modulated carrier.Include all kn..
Determine the eddy-current loss if the frequency is reduced to 60.0 percent of rated frequency and the applied voltage is adjusted to provide 80.0percent rated flux density.
For a 64-PSK modulator with an input data rate(fb) equal to 36 Mbps and a carrier frequency of 100 MHz, determine the minimum double-sided Nyquist bandwidth(fN) and the baud. Sketch the output spectrum.
A certain op amp has an open-loop dc gain of A0OL = 200, 000 and an open-loop 3-dB bandwidth of fBOL = 5Hz. This op amp is used in a non-inverting amplifier having a closed-loop dc gain ofA0CL = 100. Determine the closed-loop break frequency fBCL.
design a propotional controller for a system with the transfer function G(z)=K/(z-0.4) to have a damping ratio of 0.7
A full-wave rectifier circuit having centre-tapped transformer has 500 turns in its primary winding, 25 turns from one end of the secondary winding to the centre tap and 20 turns from the other end of secondary winding to the centre tap.
The lighting and motor loads of a small factory establish a 10kVA power demand at 0.7 lagging power factor on a 208V, 60 Hz supply. Determine the power-factor capacitor that must be placed in parallel
An infinite grounded conducting tube of radius 10cm is centered on the z axis. A concentric charged tube of radius 6 cm has a surface charge density of 24 uC/m2. A 1m long section of the charged tube is compressed to change its radius to 3 cm.
What kind of EMC filter is needed to reduce emissions from aDC motor. The motor is connected in series with a battery. Anycomponents can be used to design the filter.
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