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The antenna current of an AM transmitter is 8A when only the carrier is sent, but it increases to 8.93A when the carrier is modulated by a single sine wave. Find the percentage of modulation.
A 360 nm thick film floats on the surface of the water. The indices of refraction of the oil and the water are 1.50 and 1.33, respectively. The surface of the oil is illuminated from above at normal incidence with monochromatic light.
An experiment is performed 5 times and two measurements are made. X = {1,3,2,5,7} Y = {6,7 8 9,10} Find the correlation coefficient between X and Y.
examine the spectrum of the signal x(n).
Determine the required value of H to eliminate the effect of the disturbance.
A 3-phase, 20 kVA, 208 V, 4-pole star-connected synchronous generator has a synchronous reactance of Xs = 1.5 ohm per phase. The resistance of the stator winding is negligible. The machine is connected to a 3-phase 208 V infinite bus.
an electrical conductor designed to carry large currents has a circular cross section 2.50 mm in diameter and is 14.0 m
A series RLC circuit is connected to a generator with a voltage vs (t) = Vo cos (wt + p/3) (V). (a) Write down the voltage loop equation in terms of the current i (t), R, L, C, and vs (t). (b) Obtain the corresponding phasor-domain equation.
To obtain this energy, you build a large nuclear reactor that can supply one gigawatt of electric power. How many years will it take to generate that energy
The frequencies of the tones are 100 Hz, 300 Hz, and 450 Hz. The sampling rate is 1 kHz. Describe a low pass, a band pass, and a high pass filter that could be used to detect the individual tones.
if we have a circuit with R= 5, L=22mH, C=22nF , Vs=10 and the switch S was opens for a long time and it closes at time t=0 second. all connected in series, how can i find the voltage in the capacitor Vc
about 10000 btus of heat input are required for an electric utility to produce 1 kilowatt-hour of electrical energy.
1.nbspnbsp describe the key features of dc and ac motors-2.nbspnbsp describe the main methods of starting a.c
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