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A voltage of 60cos(4πt) V appears across the terminals of a 3 m-F capacitor. Calculate the current through the capacitor and the energy stored in it from t=0 to t=0.125 sec.
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.
A delta connected load consists of three identical impedances Z=45 at 60 degrees per phase. It is connected to a three phase, 208-V source by a three phase feeder with conductor impedance Zfeeder=(1.2+j1.6) Ohms per phase.
A temperature of 200 oC is measured using a thermopile having three pairs of measuring junctions as shown in the figure below. The reference junction temperatures are set at room temperature of 25 oC.
The pre- Limiter circuitry has a Noise Figure of 8dB and an input Noise Temperature of 1800C. Given an FM demodulation noise improvement of 17dB, determine the minimum receive signal power to achieve a post detection signal to noise ratio of 35dB.
In a ternary number system there arethree digits : 0, 1, and 2. The figure shown below defines aternary half-adder. Design a circuit that implements thishalf-adder using binary-encoded signals, such that two bits areused for each ternary digit.
a.) Write signals as the real part of the sum if rotating phasors. b) sum of the counter-rotating phasors c.) Plot the single sided amplitude and phase spectra for this signal d.) plot the double-sided amplitude and phase spectra for this signal.
A core-type transformer rated at 37.5 kVA, 2400/480 V, and 60 Hz has a core whose mean length is 1.07 m and whose cross-sectional area is 95 cm^2. The application of rated voltage causes a magnetic field intensity of 352 A-t/m (rms)
A design for high pass filter with butterworth characteristic is needed. Filter specification rewquire a cut-off frequency of 9 kHz for a sampling rate of 44 kHz, and a stop band attenuation of 40dB
Determine the settings Z1, Z2 & Z3 for the relay at B12.
Two transistors have EBJ areas as follows: AE1 = AE1 = 400μm x 400μm and AE2 = 0.4μm x 0.2μm. If the two transistors are operated in the active mode and conduct equal collector currents
A 3-phase load on a bus is metered at 3,200 kW with a 0.83 lagging power factor. What is the amount of capacitive reactive power that will correct the system power factor to 0.95 Draw all power triangles and show all variables, Q, P, S, pf.
Design a CMOS Differential pair amplifier with a low frequency gain of at least 30dB, while driving a resistive load 50-ohm. The available circuit components are NMOS transistor, PMOS transistor, resistors, capacitors and inductors.
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