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Semiconductor Devices Test - 33

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Semiconductor Devices Test - 33
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  • Question 1
    4 / -1
    C, Si and Ge have same no. of valence electrons. C is an insulator because energy required to take one electron out from
  • Question 2
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    Ionisation energy of isolated phosphorous atoms 10 eV. Ionisation energy of same atom in Si is nearly ____________ eV(Relative Permitivity of silicon = 12)
    Solution

  • Question 3
    4 / -1
    By adding _____________impurity in intrinsic semiconductor P type semiconductor is made. charge of these P type semiconductor is_________
  • Question 4
    4 / -1
    Strong overlaping of different atomic orbitals makes
  • Question 5
    4 / -1
    We can not make p–n junction diode by making P type semi–condutor join with N – type semi–conductor, Because
  • Question 6
    4 / -1
    For p–n junction, which statement is incorrect
  • Question 7
    4 / -1
    The intrinsic semi-conductor has :
  • Question 8
    4 / -1
    The behaviour of Ge as semi-conductor is due to width of :
  • Question 9
    4 / -1
    Which of the following is not the advantage of PN junction diode over tube valve ?
  • Question 10
    4 / -1
    A current gain for a transistor working as CB amplifier is 0.90. If emitter current is 10 mA, then base current is __________ .
    Solution

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