Adaptive higher order courseware

Transistor circuits


The design of the lessons.

We are looking for your characteristics (the student model). We test you - here - on beginner, advanced student or an expert in transistor circuits.

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Look to the scheme with the transistor circuit with the 4 resistors. This circuit amplifies an input signal (ui) to an output signal (uo).

Question 1: Why the transistor circuit needs the two resistors R1 and R2?

  • a. for the most optimal amplifier factor
  • b. for the best DC voltage on the collector
  • c. for the just DC current through the basis
    (c)

    Question 2: The capacitor CRE (parallel to RE) is necessary?

  • a. for a short cut for the DC voltages
  • b. because the DC voltage on RE is important for the AC amplifier
  • c. because the time constant in the input signal
    (b)

    Question 3: The capacitor C2 is necessary

  • a. because he blocks the output signal
  • b. for the just emitter voltage
  • c. for setting the DC voltage level in the output signal on 0 volt
    (c)

    Question 4 (extra): What is DC?

  • a. (an) direct current
  • b. (an) direct voltage
  • c. (an) digital collector-signal
    (a)

    Question 5 (extra): What is AC?

  • a. alternating current voltage
  • b. an alternating signal without a DC component
  • c. additional current
    (b)

    Question 6 (extra): What is a RC circuit?

  • a. a circuit with transistors and resistors
  • b. a circuit with resistors and capacitors (without transistors)
  • c. a circuit without transistors
    (b)

    Continue your lessons

    • Enschede, Febr. 2004; updated: March, 2, 2005

    Extra:
    simulation (English); additional (Dutch); additional (English).
    screendump of our six dimensional courseware test;