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Electronics and Communication Analog Electronics Difficulty: Medium

The transfer function of a plant is $$T\left( s \right) = \frac{5}{{\left( {s + 5} \right)\left( {{s^2} + s + 1} \right)}}.$$ The second-order approximation of T(s) using dominant pole concept is Which of the following peripherals provide I/O facilities? 1. 8279 2. 8155 3. 8259 4. 8255 How many bits are required to divide 10 V into 0.001 V intervals? A unity feedback system has $$G\left( s \right) = \frac{{K\left( {s + 12} \right)}}{{\left( {s + 14} \right)\left( {s + 18} \right)}}.$$ What is the value of K to yield 10% error in steady state? What are the advantages of resistance potentiometer? 1. They are inexpensive. 2. They are useful for measurement of large amplitudes of displacement. 3. Their electrical efficiency is very high and they provide sufficient output to permit control operations without further amplification.