InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
In a transistor, IB=2 mA and Ic=3 mA. The value of β is _____________(a) 1.5(b) 5.8(c) 9.6(d) 3.5The question was asked in an interview.The query is from Solid-State Devices in portion Introduction to Solid-State Devices of Electric Drives |
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Answer» The correct CHOICE is (a) 1.5 |
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| 52. |
Which one of the following is correct?(a) IE=IB+Ic(b) IE=IB-Ic(c) IE=Ic(d) IE=IBI have been asked this question at a job interview.My doubt stems from Solid-State Devices in portion Introduction to Solid-State Devices of Electric Drives |
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Answer» Right ANSWER is (a) IE=IB+Ic |
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| 53. |
Calculate the value of β for α=.8.(a) 2(b) 8(c) 3(d) 4The question was asked in an online quiz.I would like to ask this question from Solid-State Devices in chapter Introduction to Solid-State Devices of Electric Drives |
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Answer» Right option is (d) 4 |
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| 54. |
A Transistor is a current operated device.(a) True(b) FalseThe question was posed to me during an internship interview.My question is from Solid-State Devices in division Introduction to Solid-State Devices of Electric Drives |
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Answer» CORRECT OPTION is (a) True The best EXPLANATION: Transistor is a current OPERATED device. The value of COLLECTOR current is α times of the emitter current. It is a current controlled device. |
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| 55. |
Choose the correct relationship between β and ∝.(a) β=∝/(1-∝)(b) β=1/(1+∝)(c) β=1/(1-∝)(d) β=1/(∝)This question was posed to me by my college director while I was bunking the class.The query is from Solid-State Devices in chapter Introduction to Solid-State Devices of Electric Drives |
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Answer» RIGHT option is (a) β=∝/(1-∝) To ELABORATE: The relationship between β and ∝ is β=∝/(1-∝). The CURRENT gain is the RATIO of the collector current and base current. The value of β is Ic÷IB. |
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| 56. |
In a transistor, Ic=47 mA and IE=53 mA. The value of β is _____________(a) 8.48(b) 7.83(c) 9.26(d) 3.15This question was addressed to me by my college director while I was bunking the class.The doubt is from Solid-State Devices topic in chapter Introduction to Solid-State Devices of Electric Drives |
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Answer» CORRECT OPTION is (B) 7.83 For EXPLANATION: The VALUE of β is Ic÷IB. The value of IB=IE-Ic=53-47=6 mA. The value of β is Ic÷IB=47÷6=7.83. |
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| 57. |
Calculate the value of ∝ using the data: Ic=18 mA, IE=17 mA.(a) 1.05(b) 1.47(c) 1.89(d) 2.55This question was addressed to me during an interview for a job.This interesting question is from Solid-State Devices topic in section Introduction to Solid-State Devices of Electric Drives |
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Answer» RIGHT answer is (a) 1.05 The EXPLANATION: The VALUE of ∝ is Ic÷IE. The current GAIN is the ratio of the COLLECTOR current and base current. ∝=Ic÷IE=18÷17=1.05. |
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| 58. |
Calculate the current gain using the data: Ic=25 mA, IB=10 mA.(a) 3.5(b) 2.5(c) 1.4(d) 7.8I had been asked this question during an online interview.This interesting question is from Solid-State Devices in portion Introduction to Solid-State Devices of Electric Drives |
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Answer» Right answer is (b) 2.5 |
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| 59. |
Calculate the collector current using the data: IE=14 mA, IB=7 mA.(a) 7 mA(b) 8 mA(c) 9 mA(d) 10 mAThis question was posed to me during an online exam.My query is from Solid-State Devices topic in chapter Introduction to Solid-State Devices of Electric Drives |
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Answer» CORRECT OPTION is (a) 7 mA Easiest EXPLANATION: The COLLECTOR current in the transistor is IE-IB=14-7=7 mA. The KCL equation IE=IB+Ic is always in every configuration of the transistor. |
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| 60. |
Who is larger in size?(a) Base(b) Collector(c) Emitter(d) P-N JunctionThe question was asked in my homework.My question is taken from Solid-State Devices topic in chapter Introduction to Solid-State Devices of Electric Drives |
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Answer» CORRECT choice is (a) Base The BEST explanation: Collector is LARGER in size because it receives the electrons from the base region. If it is not bigger in sizer there will be crowding of electrons which causes high POWER dissipation. |
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| 61. |
The base of a transistor is lightly doped.(a) True(b) FalseI got this question during an online interview.My query is from Solid-State Devices topic in portion Introduction to Solid-State Devices of Electric Drives |
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Answer» Right answer is (a) True |
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