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Q. Can you explain Noninverting Amplifier?
It is called "noninverting" because there is no sign inversion. A typical circuit is shown in Figure. With a finite op-amp gain Ao,
Since the ideal op amp draws no current,
i1 = i2
Also, as seen from Figure,
v2 = vi
In equating Equations, one gets
which is the gain of an ideal voltage follower. The same result applies if R1 →∞ (i.e., open circuit) for any finite R2.
Explain Series capacitors These are connected in series with the line conductors and are used to reduce the inductive reactance of long transmission lines and hence the voltage
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Q. Show Effects of Saliency and Saturation? Because of saliency, the reactancemeasured at the terminals of a salient-pole synchronousmachine as opposed to a cylindrical-rotor m
Based on Figure, using star-delta transformation, calculate the current flow and voltage drops at 6kΩ resistor.
Q. Two identical junction diodes whose volt-ampere relation is given by Equation in which IS = 0.1 µA, VT = 25 mV, and η = 2, are connected as shown in Figure. Determine the curren
Q. An 8-bit A/D converter is driven by a 1-MHz clock. Estimate the maximum conversion time if: (a) It is a counter-controlled A/D converter. (b) It is a successive-approximat
HOW TO DESIGN
Explain all of your steps and follow a logical train of thought. Clearly describe all design rationale. 1) Design a device to deliver a sinusoidal 500kHz pulse through a piezoe
Q. Explain the conditions under which an RC circuit behaves as Differentiator Differentiator is a circuit in which the output voltage is directly proportional to the derivative
For the circuit of Figure, obtain the complete solution for the current i L (t) through the 5-H inductor and the voltage v x (t) across the 6- resistor.
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