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Q. Why do we cascade amplifiers? Why is RC coupling the most widely used coupling between 2 stages of a cascading amplifier?
The voltage or power gain or frequency response obtainable from a single stage amplifier is usually not sufficient to meet the needs of either a composite electronic circuit or load device, so cascading of amplifiers is required to provide greater voltage of current amplification of both. RC coupling is the most widely used coupling between the two stages of a cascaded or multi stage amplifier because it is cheaper in cost, it is a very compact circuit and provides excellent frequency response.
Define Shunt Capacitors and Reactors Shunt capacitors absorb leading VArs (i.e. they are used to supply lagging VArs) whereas reactors are used to absorbs lagging VArs. Capacit
Define the term Causality LTI System Any practical LTI system operating in real time must be "causal" which means that its impulse response {h[n]} must satisfy h[n] = 0 for n
Q. Explain Position servo in a radar system? Figure depicts the essential elements of a position servo system. In a radar system, an electromagnetic pulse is radiated from an a
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Explain Interrupts of 8085. a) Maskable interrupt b) Vectored interrupt c) Non maskable interrupt d) Hardware interrupt e) Software interrupt
draw a graph of V=IR for R=300ohms over the domain -3mA
What we have seen for practical power supplies applies to any electrical circuit provided it contains only linear components
charges of +2q and -4q are fixed a distance d apart as in figure_2(a).find electric field at the point A ,B and C (b) sketch roughly the electric field lines.
Direct Tapping and Unmetered Connections Direct Tapping Direct tapping of power by non-customers is widely prevalent. This is mainly in domestic and agricultural categori
For an operating point half way up the parallel section and the discharge valve and the discharge fully open, design a proportional only controller which will give closed loop dyna
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