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The first is a series connection of a sinusoidal voltage source vs(t)= 0.5cos(ωt), a single resistor of value R and a single capacitor of value C. The second circuit is a series connection of a sinusoidal voltage source of the same value as above, a single resistor of value R and a single inductor of value L. If the resistor voltage (in both circuits), the capacitor voltage and the inductor voltage must have the same magnitude, find the required relationships between R, L, C and ω. Hints: Combine the impedances and find phasor current in the two circuits by using Phasor Ohm ( I= V/Z), then find voltage across each element (eg: VR = I * ZR ). Setting magnitudes equal is the same as setting the square of the magnitudes equal. Which can be obtained by multiplying the expression by its complex conjugate.
(a.) the short dipole far fields (b.) the time-average power density in the far field of the short dipole (c.) the total radiated power radiated by the short dipole (d.) the radiation resistance of the short dipole.
A uniform plane wave propagates from one dielectric into another at normal incidence. Find the ratio of the dielectric constants such that the magnitudes of the reflection and transmission coefficients are both equal to 0.5.
Assume that at this point when Av*β = 1, phase shift due to the amplifier is 120 degrees. A 0.001 micro farad capacitor is added in parallel with Rf in the feedback circuit. What is the new phase shift at the frequency where Av*β = 1
Consider a signal x(t) = 10 cos(2pi*fct + 4 cos 2pi*fmt). Assume frequency modulation. The message frequency fm = 2:3 kHz. Calculate the modulation index and find the bandwidth when.
Design a m-seguence PN generator using 3 shift registers. Show design procedure circuit and PN sequence and find 16 Walsh codes for modulating (encoding) a 4-bit data packet
calculate the capacitance of the capacitor and the inductance of the inductor. for the capacitor it's going to be 1/(j*2*pi*frequency*capacitance) and (j*2*pi*frequency*inductance) for the inductor but what are the valves for the capacitance and ..
1.The signal is 10 sin (pi 500t +30deg). The amplitude of this signal is 2.The signal is 2 sin(pi 1500 t + 60deg). The frequency of the signal is 3.The signal is 5 sin(4 pi 800t - 80 deg). The phase of this signal is
how long will it take to transmit the three ASCII code to characters $14 in 8 bit parallel if the clock frequency is 8 MHz? Repeat for $78.18 at 4.17 MHz
A user wanta 6-bit counter that has an asynchrone clear.the user can load it with a value.when activated,it has two modes.in mode 1,it can perform increment by 4,in mode 2 it decrement the value by 1.write the VHDL code for the system.
A silicon (ni= 10^10 cm^-3) p-n junction diode has a maximum electric field of -10^6 V/cm and a depletion layer width of 1 um. The acceptor density in the p-type region is four times larger than the donor density in the n-type region.
The source-free circuit depicted in Fig. 9.1 is constructed using a 10mH inductor, a 1mF cPcitor, and a 1.5k ohm resistor. a) Calculate alpha, omega-sub-delta, and omega-sub-zero. b) write the equation which describes the current i for t>0.
(a) find the value of a and K so that the relative damping ratio of the system is 0.5 and the rise time step response is approximately 1 s. (b) with the values of a and k found in previous question
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