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Quiz: EDC-Transistor Theory (BJT , FET)

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Number of Questions: 20

Question: 6 -

MOSFETs can be operated at higher frequencies as compared to BJTs because

Options:

  1. MOSFETs are voltgae controlled

  2. MOSFETs have higher input impedance

  3. MOSFETs have positive temperature coefficient

  4. Minority carrier storage time is absent in MOSFET

    5. Answer:

    Minority carrier storage time is absent in MOSFET
    Solution not available.

Question: 7 -

In a PNP transistor operating in the active region , in the best region the main stream of current is

Options:

  1. Diffusion of holes

  2. Drift of holes

  3. Diffusion of electrons

  4. Drift of electrons

    5. Answer:

    Diffusion of holes
    Solution not available.

Question: 8 -

Advantage of JFET over BJT is

Options:

  1. High GBW product

  2. Low noise

  3. High input impedance

  4. Current controlled behaviour

    5. Answer:

    Low noise
    Solution not available.

Question: 9 -

The input impedance of JFET is

Options:

  1. Comparable to BJT

  2. Very low w.r.t BJT

  3. Ideally equal to zero

  4. Very high w.r.t BJT

    5. Answer:

    Very low w.r.t BJT
    Solution not available.

Question: 10 -

Compared to the junction transistor , FET

(i) Has a larger gain bandwidth product

(ii) Is less noisy

(iii) Has less input resistance

(iv) Has only majority carrier flow

The correct statements are

Options:

  1. ii and iv

  2. iii and i

  3. ii and i

  4. iii and iv

    5. Answer:

    ii and iv
    Solution not available.