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Assume that you wish to connect an 8[ohm]speaker to an amplifier using an ideal transformer. The amplifier has a Thévenin voltage of 25[Vrms], and aThévenin resistance of 0.275[ohm]. Find the turns ratiofor the transformer, so that the maximum possible power isdelivered to the speaker.
Assume that in addition to the sine-wave signal you have a dc reference voltage of 1.5 V available. Sketch the output signal waveform.
A buck converter has an input voltage that varies between 10 and 15 V and a load current that varies between 0.5 A and 1.0 A. The output voltage is 5 V. For a switching frequency of 200 kHz, determine the minimum inductance to provide for continuo..
It is operating at 50% of its rated load at a power factor of .5 leading, compute efficiency using both exact and approximate equivalent circuits as referred to the primary side. Tabulate the percent errors in the currents, voltages, powers
Two line conductors carry currents of 1 A and 2 A respectively. The first conductor is on the x-axis, while the other is parallel to the y-axis, and passes through the point (0, 0, 1 m). Find all points on the z-axis such that Bx = -By.
a) Find the value of the voltage source "E"that is required to provide a 10V across the 10kΩ resistor. What are the values of [V10k/E] and [V3.3k/V10k] b) Dtermine the amount of power supplied by the voltage source when E= 20V.
a series RLC bandpass circuit with R= 30 ohms is designed to have a bandwidth of 5 Mrad/s and a center frequency of 50 Mrad/s. Find L, C,Q and the two cut off frequencies.
A state government is considering construction of a flood control dike having a life span of 15 years. History indicates that a flood occurs every 5 years, on average, and causes $600,000 in damages on each occasion.
Construct a 4-to-16-line decoder with five 2-to-4-line decoders (74LS139A). Use a block diagram for components and clearly show your address select variables.
a current entering the upper terminal of an ideal basic circuit is i= 20cos 5000t A. Assume the charge at the upper terminal is zero at the instant the current is passing through it maximum value. Find the expression for q(t).
The specificationof the desired low pass filter are A min=23 dB, A max=5dB, P=02and S=0.6. Design a Butterworth digital filter using bilinear transformation.
A combinational logic circuit has 3 outputs as described below: F1=Minterm(0,3,4) F2= minterm(1,2,7) F3= Maxterm=(0,1,2,4) Implement the circuit using a single decorder with active high outputs and external 2 input OR gates
The power factor of the added load is to be adjusted so that the overall power factor of the factory is 0.96 lagging. The factory is fed from a line having an impedance of 0.02 + j0.16 O. The voltage at the factory is maintained at 480 V(rms).
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