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Symbolic form of a given switching circuit

This type of question, asked 4 times: 22 Apr 2025 S2, 25 Apr 2025 S2, 12 May 2026 S1, 15 May 2026 S1. All 4 questions below, oldest first.

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  1. Question 1

    22 Apr 2025 S2

    136
    If p : switch S1S_{1} is closed, q: switch S2S_{2} is closed, r : switch S3S_{3} closed, then the symbolic form of the following switching circuit is equivalent to Switching Circuit:

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  2. Question 2

    25 Apr 2025 S2

    121
    If p≡p\equiv The switch S1S_{1} is closed, q≡q\equiv The switch S2S_{2} is closed, r≡r \equiv switch S3S_{3} is closed, then symbolic form of following switching circuit is equivalent to

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  3. Question 3

    12 May 2026 S1

    64
    Symbolic form of the circuit is equivalent to .........

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  4. Question 4

    15 May 2026 S1

    62
    Let pp: switch S1S_1 is closed, qq: switch S2S_2 is closed. Then, the equivalent symbolic form for the following circuit is:

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