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Semiconductors MCQ

Semiconductors Quick Quiz

Question 1 of 10
  • Which type of element is most widely used for the manufacture of semiconductor devices?

    Answer & Explanation

    Correct Answer: Group IV

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  • On a circuit board what letter usually marks a transistor?

    Answer & Explanation

    Correct Answer: Q

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  • Which of the following conditions must a transistor fulfill to act as an amplifier?

    Answer & Explanation

    Correct Answer: Base-emitter junction forward biased and base-collector junction reverse biased

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  • What would be the gain of a negative feedback amplifier with an internal gain A=100 and a feedback factor m=0.9?

    Answer & Explanation

    Correct Answer: 1.09

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  • In the collector feedback biasing, β = 57 , RC = 1 kΩ , IB = 60µA and VCB = 4.5V. The value of the stability factor will be _____.

    Answer & Explanation

    Correct Answer: 32.9

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  • When a transistor is driven to saturation, ideally, the Vce is _____.

    Answer & Explanation

    Correct Answer: 0

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  • Which two formulas determine the carrier distribution of a semiconductor?

    Answer & Explanation

    Correct Answer: Fermi-Dirac distribution & density of states

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  • The Q-factor of a parallel tuned circuit is given by _____.

    Answer & Explanation

    Correct Answer: 1/R√L/C

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  • The required gain of an amplifier for sustained oscillation in the wein bridge oscillator is _____.

    Answer & Explanation

    Correct Answer: A 3

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  • What is the bandgap of silicon?

    Answer & Explanation

    Correct Answer: 1.12 eV

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  • Semiconductors Quick Quiz

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