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(i) State the function of the rectifier in power supply

(i) State the function of the rectifier in power supply

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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1. (i) State the function of the rectifier in power supply (ii) What is the importance of determining the Peak-Inverse-Voltage of a diode? (iii) The energy band in which free electrons exist is the (a) First band (b) second band (c) conduction band (d) valence band (b) Electron-hole pairs are produced by (a) recombination (b) thermal energy (c) ionization (d) doping (v) Each atom in a silicon crystal has (a) four valence electrons (c) eight valence electrons (vi) The current in a semiconductor is produced by (a) electrons only (c) negative ions (vii) The pröcess of adding an impurity to an intrinsic semiconductor is called (a) recombination (c) atomic modification (viii) The depletion region is created by (a) ionization (c) recombination (ix) The term bias means (a) the ratio of electrons to holes (b) the amount of diode current (c) applied dc-voltage to control the device (d) answers (a), (b), and (c) (x) For a silicon diode, the value of the forward bias voltage typically (a) must be greater than 0.3 V (c) depends on depletion region width (b) four conduction electrons (d) no valence electrons (b) holes only (d) both electrons and holes (b) doping (d) ionization (20) (b) diffusion (d) answers (a), (b), and (c) (b) depends on carrier concentration (d) must be greater than 0.7 V
Transcribed Image Text:1. (i) State the function of the rectifier in power supply (ii) What is the importance of determining the Peak-Inverse-Voltage of a diode? (iii) The energy band in which free electrons exist is the (a) First band (b) second band (c) conduction band (d) valence band (b) Electron-hole pairs are produced by (a) recombination (b) thermal energy (c) ionization (d) doping (v) Each atom in a silicon crystal has (a) four valence electrons (c) eight valence electrons (vi) The current in a semiconductor is produced by (a) electrons only (c) negative ions (vii) The pröcess of adding an impurity to an intrinsic semiconductor is called (a) recombination (c) atomic modification (viii) The depletion region is created by (a) ionization (c) recombination (ix) The term bias means (a) the ratio of electrons to holes (b) the amount of diode current (c) applied dc-voltage to control the device (d) answers (a), (b), and (c) (x) For a silicon diode, the value of the forward bias voltage typically (a) must be greater than 0.3 V (c) depends on depletion region width (b) four conduction electrons (d) no valence electrons (b) holes only (d) both electrons and holes (b) doping (d) ionization (20) (b) diffusion (d) answers (a), (b), and (c) (b) depends on carrier concentration (d) must be greater than 0.7 V
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