3. Electronics and Circuits

Digital Electronics — Quiz

Test your understanding of digital electronics with 5 practice questions.

Practice Questions

Question 1

A 4-bit ripple counter is constructed using J-K flip-flops. If each flip-flop has a propagation delay of $10 \text{ ns}$, what is the maximum clock frequency at which this counter can reliably operate without errors due to propagation delays?

Question 2

Consider a combinational circuit with three inputs $A, B, C$ and one output $Y$. The output $Y$ is HIGH (1) if the binary input value is a prime number (considering 0 as not prime). Which of the following Boolean expressions correctly represents this circuit's output?

Question 3

In a Mechatronics system, a digital-to-analog converter (DAC) is used to control the speed of a DC motor. If the DAC has a 10-bit resolution and a full-scale output voltage of $10 \text{ V}$, what is the smallest change in voltage (step size) that the DAC can produce?

Question 4

Which of the following describes a critical timing parameter in sequential circuits that must be satisfied to ensure reliable data capture by a flip-flop?

Question 5

In Verilog HDL, which of the following constructs is most appropriate for describing combinational logic that should react immediately to changes in its inputs, such as an AND gate or a multiplexer?