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(a) For a series RLC resonant circuit, find an expression for the voltage across the resistance VR and obtain the ratio VR/VS, where VS is theapplied voltage. Identify the expressions for the series resonant frequency and bandwidth.
(b) Determine the resonant frequency and bandwidth, given the voltage transfer function to be 103 /(s2 + 103s + 1010).
Q. How oscillations start up in an oscillator? The noise voltage produced due to the random motion of electrons in resistors or in active devices provides the starting voltage
The following four output displays of an oscilloscope (right hand side, below) show waveforms of a biased diode ac circuit. An example is illustrated on the left hand side. VIN is
a) A 230 V/25V, 50 HZ transformer with a rated primary current of 1,2 Amps is used to supply a number of 25 V, 30 Watt halogen light bulbs. Assuming an ideal transformer and tha
Saturation or active mode While V GS > V th and V DS > (V GS - V th ) The switch is turned on, and a channel has been made that allows current to flow
Q. Using the small-signal equivalent circuit of a BJT with gm = 0.03 S, β = 75, and VA = 65 V, a load resistor RL is connected from the collector to the emitter, as shown in Figure
Q. Explain why equalizing connection are used in lap winding and dummy coils are some time used in wave winding. Sol. For batteies operating in parallel, the circulating c
What is meant by polling? Polling or device polling is a process which recognizes the device that has interrupted the microprocessor.
Q. Explain Thevenin and norton equivalent circuits? For a linear portion of a circuit consisting of ideal sources and linear resistors, the volt-ampere (v-i) relationship at an
Q. Consider two 1-C charges separated by 1 min free space. Show that the force exerted on each is about one million tons.
how started the use of complex variables in circuit analysis for the first time.
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