GATE Digital Electronics: Sequential logic and counters – Previous Year Questions
7 GATE previous year questions on Sequential logic and counters (Digital Electronics, Instrumentation Engineering) with answers and explanations, from every paper.
- GATE 2021 IN Q46 – The synchronous circuit contains JK and T flip-flops with outputs A and B, respectively, J A=A+B, K A=A+B, and T B=A. Starting at AB=00, its state…
- GATE 2022 IN Q46 – The digital circuit shown
- GATE 2023 IN Q16 – The table gives present state, next state, and control input. Identify the flip-flop. Present Q(t) Next Q(t+1) Input ---: ---: ---: 0 0 0 0 1 1 1 0 1…
- GATE 2023 IN Q42 – In the circuit shown, the initial binary content of shift register A is 1101 and that of shift register B is 1010. The shift registers are…
- GATE 2024 IN Q42 – The positive-edge-triggered D flip-flops shown are initially reset to Q=0. Gates and multiplexers have no propagation delay. After reset, clock pulses…
- GATE 2025 IN Q40 – The digital circuit shown has clock frequency 12 MHz. Its output F frequencies for Control = 0 and Control = 1, respectively, are
- GATE 2026 IN Q47 – The initial state Q 3Q 2Q 1Q 0 in the digital circuit shown below is 1011. The new value of Q 3Q 2Q 1Q 0 after two rising edges of the clock (CLK)…