41. The depletion region is created by a. Ionization b. Diffusion c. Recombination d. Answers a, b, and c 42. The depletion regions is consist of a. Nothing but minority carriers b. Positive and negative ions c. No majority carriers d. Answers b and c 43. The term bias means a. A DC voltage is applied to control the operation of a device b. Neither a nor c c. The ratio of majority carriers to minority carriers d. The amount of current across a diode 44. When diode is forward-biased a. The only current is hole current b. The only current is produced by majority carriers c. The current is produced by both holes and electrons d. The only current is electron current 45. Although current is blocked in reverse bias a. There is some current due to majority carriers b. There is very small current due to minority carriers c. There is an avalanche current d. Both b and c 46. For a silicon diode, the value of the forward-bias voltage typically a. Must be greater than 0.3V b. Depends on the width of the depletion region c. Depends on the concentration of majority carriers d. Must be greater than 0.7V 47. When forward-biased, a diode a. Block current b. Has a high resistance c. Conducts current d. Drops a large voltage 48. When a voltmeter is placed across a forward-biased diode, it will read a voltage approximately equal to a. The diode barrier potential b. The bias battery voltage

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Analog to Digital Converters

The analog-to-digital converter (ADC) allows circuits controlled by microprocessors, Arduinos, Raspberry Pi, and various reasonable digital circuits to be connected to the real world. In the real world, analog signals have a continuous stream of information from a variety of sources and sensors capable of measuring sound, light, temperature, or movement, in addition to the many digital systems that interact with their environment by measuring analog signals from those transducers.