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Write the expression for the electric field intensity of a sinusoidally time-varying uniform plane wave propagating in free space and having the following characteristics:
(a)
(b) direction of propagation is the -direction; and
(c) polarization is right circular with the electric field in the plane at having an -component equal to and a -component equal to 0.75E0.
A collector modulated transmitter has a supply voltage of 48 V and an average collector current of 600 mA. What is the input power to the transmitter. How much modulating signal power is needed to produce 100 percent modulation.
Need the coding for the circuits and its a intelligent fan controller based on temperature?
Calculate and plot the resulting noise figure as the input reflection coefficient magnitude, ||, varies from 0 to 0.9 for F = 1, 3, and 10 dB.
A Y-connected load has an impedance of 25+j12 ohms in each phase. It is desired to raise the load power factor to .95 lagging. (a) What size capacitor should be placed in parallel with each phase impedance if frequence = 60 Hz
Calculate the instantaneous power absorbed by the resistor, the instantaneous power absorbed by the capacitor, the real power absorbed by the resistor, the reactive power delivered by|the capacitor, the load power factor.
The output of the FM modulator is sFM(t) = 10cos[400πt + 2πkf] where kf = 10. If the output of the FM modulator is passed through an ideal BPF centered at fc = 2000 with a bandwidth of 62 Hz, determine the power of the frequency components at the ..
each pole of a 100kw 250v flet-compound generator has a shunt field of 2000 turns and a series field of 7 turns. if the
(a) An average hole velocity of 10^3 cm/sec results when 2 v is appliedaccross a 1 cm-long semiconductor bar. What is the mobilityof the bar (b) name the two dominant carrier scattering mechanisms innondegenerately doped semiconductors of device qu..
3-phase-Y-connected load of 40,000W at 0.8 PF lag is supplied by a three-phase Y-connected source of 500V. Find the current and phase voltages. Assuming Van as ref. Determine Ian, Ibn, Icn, Vab, Vbc, and Vca in phasor form.
Given the electric field E= ar (18/r2)(V/m), find the electric potential of point A with respect topoint B where A is at +2m and B is at -4m on the z-axis.
a cnostant freqency step down chopper system us used for thecontrol of dc series motor from 550v. The armature and fieldresistances are 0.03Ω and 0.02Ω respectively, the average current in the motor circuit being 300A
A 500 hp, three-phase, 2200 V, 60 HZ, 12-pole, Y-connected, wound-rotor induction motor has the following parameters: R1 = .225 ohm : R'2= .235 ohm Xeq = 1.43 ohm and Xm = 31.8 ohm and Rm = 780 ohm
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