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12th Standard English Medium Physics Subject Electronics and Communication Creative 1 Mark Questions with Solution Part - I Question Bank Software Jun-18 , 2021

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12th Standard English Medium Physics Subject Electronics and Communication Creative 1 Mark Questions with Solution Part - I

12th Standard English Medium Physics Subject Electronics and Communication Creative 1 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5

  1. The behaviour of Ge as semi-conductor is due to width of ___________.

    (a)

    conduction band being large

    (b)

    forbidden band being small

    (c)

    conduction band being small

    (d)

    forbidden band being small and narrow

  2. For a transistor \(\frac{I_C}{I_E}\) = 0.96, then CE current gain is ______________.

    (a)

    12

    (b)

    6

    (c)

    24

    (d)

    48

  3. In Si-crystal, impurity donor atom have valency ________________.

    (a)

    2

    (b)

    3

    (c)

    4

    (d)

    5

  4. A full wave rectifier is operating at 50 Hz, 220v the fundamental frequency of ripple will be __________.

    (a)

    50 Hz

    (b)

    75 Hz

    (c)

    110 Hz

    (d)

    100 Hz

  5. Digital circuits can be made to be respective use of ______________.

    (a)

    AND gate

    (b)

    OR gate

    (c)

    NOT gate

    (d)

    NAND gate

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