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Semiconductor D...

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  • Question 1
    4 / -1

    How many NAND gates are used to form AND gate ?

  • Question 2
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    Ripples are ________.

  • Question 3
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    In an P.N.P transistor circuit, the collector current is 10 mA. If 90% of the electrons emitted reach the collector :

  • Question 4
    4 / -1

    When a P-type semi-conductor is heated :

  • Question 5
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    The depletion layer in PN junction diode is caused by

  • Question 6
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    The active junction area in a solar cell is ________ as we want ________ power

  • Question 7
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    The forbidden energy band gap in semi-conductor, conductor and insulator are E1, E2 and E3 respectively. The relation among then is :

  • Question 8
    4 / -1

    In a common emitter amplifier, output resistance is 5000Ω and input resistance is 1000Ω. If peak value of signal voltage is 1 mV and β =100 , then the peak value of output voltage is _______

  • Question 9
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    The A.C. current gain of a transistor is 100. If the base current changes by 100µA, What is the charge in collector current ?

  • Question 10
    4 / -1

    In Ge sample, traces of gallium are added as impurity. The resultant sample would behave like :

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