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Quiz: EDC-Transistor Theory (BJT , FET)

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Number of Questions: 20

Question: 16 -

α-cut off frequency of a bipolar junction transistor

Options:

  1. Increase with the decrease in the base width

  2. Increase with the increase in base width

  3. Increase with the increase in emitter width

  4. Increases with the increase in collector width

    5. Answer:

    Increase with the decrease in the base width
    Solution not available.

Question: 17 -

In MOSFET devices the n-channel type is better than the P-channel type in the following respects

Options:

  1. It has better noise immunity

  2. It has better drive capability

  3. It is faster

  4. It is TTL compatible

    5. Answer:

    It is faster
    Solution not available.

Question: 18 -

The Pinch off voltage of a JFET is 5.0 V . Its cutoff voltage is

Options:

  1. 5 V

  2. √5 V

  3. (5)^3/2 V

  4. 2.5 V

    5. Answer:

    5 V
    Solution not available.

Question: 19 -

Which of the following effects can be caused by a rise in the temperature ?

Options:

  1. Increase in BJT current (Ic)

  2. Decrease in MOSFET current (Ids)

  3. Increase in BJT current (Ic) & Decrease in MOSFET current (Ids)

  4. Increase in MOSFET current (Ids)

    5. Answer:

    Increase in BJT current (Ic) & Decrease in MOSFET current (Ids)
    Solution not available.

Question: 20 -

In a bipolar transistor at room temperature , if the emitter current is doubled , the voltage across its base-emitter junction

Options:

  1. Halves

  2. Increases by about 20 mV

  3. Decreases by about 20 mV

  4. Doubled

    5. Answer:

    Increases by about 20 mV
    Solution not available.