HomeElectronics Multiple choice question MCQ online testSemiconductor Diode Quiz-MCQ Semiconductor Diode Quiz-MCQ Leave a Comment / Electronics Multiple choice question MCQ online test Spread the love 0% 1 votes, 5 avg Created on September 03, 2022Basic electronics Semiconductor Diode (PN junction) 1 / 25 Category: Semiconductor diode (PN junction) What is the dc output voltage of an unfiltered half wave rectifier whose peak output voltage 9.8v 3.1v 9.8v 6.23v 19.6v 2 / 25 Category: Semiconductor diode (PN junction) A semiconductor has ………… temperature coefficient of resistance. None of the above Positive Zero Negative 3 / 25 Category: Semiconductor diode (PN junction) To a first approximation of a forward-biased diode is treated like a Open switch with infinite resistance Closed switch with the voltage drop of zero volt Close switch in series with the battery voltage of 0.7v Lose switch in series with a small resistance and a battery 4 / 25 Category: Semiconductor diode (PN junction) A trivalent impurity has ….. valence electrons 6 5 3 4 5 / 25 Category: Semiconductor diode (PN junction) A PN junction acts as a ………. None of the above Bidirectional switch Controlled switch Unidirectional switch 6 / 25 Category: Semiconductor diode (PN junction) A semiconductor is formed by ……… bonds. None of the above Electrovalent Covalent Co-ordinate 7 / 25 Category: Semiconductor diode (PN junction) A reverse bias pn junction has ………… Large current flow Very low resistance Very narrow depletion layer Almost no current 8 / 25 Category: Semiconductor diode (PN junction) With forward bias to a pn junction , the width of depletion layer ……… Decreases Increases Remains the same None of the above 9 / 25 Category: Semiconductor diode (PN junction) A semiconductor has generally ……………… valence electrons. 3 4 2 6 10 / 25 Category: Semiconductor diode (PN junction) A reverse biased pn junction has resistance of the order of KΩ MΩ None of the above Ω 11 / 25 Category: Semiconductor diode (PN junction) The most commonly used semiconductor is Sulphur Silicon Germanium Carbon 12 / 25 Category: Semiconductor diode (PN junction) In an intrinsic semiconductor, the number of free electrons ……… Is less than the number of holes Equals the number of holes None of the above Is greater than the number of holes 13 / 25 Category: Semiconductor diode (PN junction) When a pure semiconductor is heated, its resistance ………….. Can’t say Remains the same Goes up Goes down 14 / 25 Category: Semiconductor diode (PN junction) In a semiconductor, current conduction is due to …….. Holes and free electrons Only free electrons Only holes None of the above 15 / 25 Category: Semiconductor diode (PN junction) The leakage current in a pn junction is of the order of µA kA A mA 16 / 25 Category: Semiconductor diode (PN junction) A forward biased pn junction diode has a resistance of the order of None of these Ω KΩ MΩ 17 / 25 Category: Semiconductor diode (PN junction) The addition of trivalent impurity to a semiconductor creates many …….. Holes Free electrons Bound electrons Valence electrons 18 / 25 Category: Semiconductor diode (PN junction) At absolute temperature, an intrinsic semiconductor has ………. Many free electrons No holes or free electrons A few free electrons Many holes 19 / 25 Category: Semiconductor diode (PN junction) in n-type semiconductors the minority current carriers are The holes Protons Free electrons Valence electrons 20 / 25 Category: Semiconductor diode (PN junction) A pentavalent impurity has ………. Valence electrons 5 3 6 4 21 / 25 Category: Semiconductor diode (PN junction) A hole in a semiconductor is defined as ……………. A free proton A free electron A free neutron The incomplete part of an electron pair bond 22 / 25 Category: Semiconductor diode (PN junction) At room temperature, an intrinsic silicon crystal acts approximately as …… A battery An insulator A piece of copper wire A conductor 23 / 25 Category: Semiconductor diode (PN junction) Under normal conditions a diode conducts current when it is …………… saturated avalanched reverse biased forward biased 24 / 25 Category: Semiconductor diode (PN junction) The leakage current across a pn junction is due to ………….. Majority carriers None of the above Junction capacitance Minority carriers 25 / 25 Category: Semiconductor diode (PN junction) The forward voltage drop across a silicon diode is about 5 V 2.5 V 0.7 V 3 V Your score is LinkedIn Facebook 0% Restart quiz Exit Anonymous feedback Thank you Send feedback Transistor questions and answers Zener Diode MCQ with answers Logic gates MCQ Quiz Basic electronics MCQ question answer Semiconductor PN diode Spread the love
