5) The output impedance of a voltage regulator is a. Very small b. Very large c....
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5) The output impedance of a voltage regulator is a. Very small b. Very large c. Equal to the load voltage divided by the load current d. Equal to the input voltage divided by the output current 6) Thermal shutdown occurs in an IC regulator if a. Power dissipation is too low b. Internal temperature is too high c. Current through the device is too low d. Any of the above occurrences 7) A series regulator is an example of a a. Linear regulator b. Switching regulator c. Shunt regulator d. DC-to-dc converter 8) A power supply with low output impedance has low a. Load regulation b. Current limiting C. Line regulation d. Efficiency 9) A shunt regulator is inefficient because a. It wastes power b. It uses a series resistor and a shunt transistor c. The ratio of output to input power is low d. All of the above Answer the following True or False: 20) Most op amps available today are low-power devices with a maximum power rating of less than a watt 21) By connecting two external capacitors, op amp voltage gain and bandwidth can be adjusted to exact requirements. 22) An op amp consists of a diff amp as the input stage followed by more stages of gain, and a class B push-pull emitter follower 23) A typical op amp has a single-ended input and a differential output ! 24) The ideal op amp has infinite voltage gain, infinite unity-gain frequency, infinite input impedance, and infinite CMRR. 25) When an op amp has no feedback path or loop, the voltage gain is minimum 26) When higher input resistance is required, a designer would most probably use a BIFET op amp. 27) The 741C is the least expensive and most widely used op amp 5) The output impedance of a voltage regulator is a. Very small b. Very large c. Equal to the load voltage divided by the load current d. Equal to the input voltage divided by the output current 6) Thermal shutdown occurs in an IC regulator if a. Power dissipation is too low b. Internal temperature is too high c. Current through the device is too low d. Any of the above occurrences 7) A series regulator is an example of a a. Linear regulator b. Switching regulator c. Shunt regulator d. DC-to-dc converter 8) A power supply with low output impedance has low a. Load regulation b. Current limiting C. Line regulation d. Efficiency 9) A shunt regulator is inefficient because a. It wastes power b. It uses a series resistor and a shunt transistor c. The ratio of output to input power is low d. All of the above Answer the following True or False: 20) Most op amps available today are low-power devices with a maximum power rating of less than a watt 21) By connecting two external capacitors, op amp voltage gain and bandwidth can be adjusted to exact requirements. 22) An op amp consists of a diff amp as the input stage followed by more stages of gain, and a class B push-pull emitter follower 23) A typical op amp has a single-ended input and a differential output ! 24) The ideal op amp has infinite voltage gain, infinite unity-gain frequency, infinite input impedance, and infinite CMRR. 25) When an op amp has no feedback path or loop, the voltage gain is minimum 26) When higher input resistance is required, a designer would most probably use a BIFET op amp. 27) The 741C is the least expensive and most widely used op amp
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Related Book For
Analysis and Design of Analog Integrated Circuits
ISBN: 978-0470245996
5th edition
Authors: Paul R. Gray, ? Paul J. Hurst Stephen H. Lewis, ? Robert G. Meyer
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