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The characteristics of the combinational circuits are: A. Output at any time is function of inputs at that time B. Contains memory elements
Question



The characteristics of the combinational circuits are:
A. Output at any time is function of inputs at that time
B. Contains memory elements
C. Do not have feedback paths
D. Clock is used to trigger the circuits to obtain outputs
Choose the correct answer from the options given below:

A.

A and B only

B.

B and C only

C.

A and C only

D.

B and D only

Correct option is C


A. Output at any time is a function of inputs at that time: This is true for combinational circuits. The output depends solely on the current inputs and not on past inputs or states.
B. Contains memory elements: This is false. Combinational circuits do not contain memory elements; they do not store any past state.
C. Do not have feedback paths: This is true. Combinational circuits are acyclic and do not involve loops or feedback mechanisms.
D. Clock is used to trigger the circuits to obtain outputs: This is false. Combinational circuits do not require a clock signal as they are not time-dependent; outputs are generated instantaneously based on the inputs.
Information Booster
1. Definition of Combinational Circuit:
· A type of circuit where the output is determined only by the current inputs.
· Examples include adders, multiplexers, and encoders.
2. Key Features:
· Memoryless behavior: No previous state information is stored.
· Feedback-free design: Outputs do not loop back to the inputs.
3. Contrast with Sequential Circuits:
· Sequential circuits have memory and depend on past inputs or states.
· They often require a clock signal for synchronization.
4. Applications of Combinational Circuits:
· Arithmetic and logical operations (e.g., ALU in processors).
· Data routing (e.g., multiplexers, demultiplexers).
· Code conversion (e.g., binary to BCD encoders).

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