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Refer to FIGURE 4.1 and answer the questions that follow - NSC Electrical Technology Electronics - Question 4 - 2019 - Paper 1

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Refer to FIGURE 4.1 and answer the questions that follow. 4.1.1 Identify multivibrators A and B. 4.1.2 Draw the output signal of the astable multivibrator at C on ... show full transcript

Worked Solution & Example Answer:Refer to FIGURE 4.1 and answer the questions that follow - NSC Electrical Technology Electronics - Question 4 - 2019 - Paper 1

Step 1

4.1.1 Identify multivibrators A and B.

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Answer

A is a Bistable Multivibrator. B is a Monostable Multivibrator. The bistable multivibrator has two stable states, while the monostable multivibrator has one stable state and one unstable state.

Step 2

4.1.2 Draw the output signal of the astable multivibrator at C.

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Answer

The output signal of the astable multivibrator oscillates between two voltage levels, typically +Vout and -Vout, generating a square wave. The waveform can be illustrated as follows:

    +Vout
     |\n     |     * * * *            * * * *
  ---|----*     *----*     *----*     *-----> t
     |          *          *          *  
    -Vout

This output alternates rapidly, with equal time spent high and low, creating a continuous square wave.

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