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A basic multiplexer principle can be demonstrated through the use of a ____________

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A basic multiplexer principle can be demonstrated through the use of a ____________

(a) Single-pole relay

(b) DPDT switch

(c) Rotary switch

(d) Linear stepper

This question was addressed to me in an interview for job.

The origin of the question is Multiplexers (Data Selectors) in chapter Combinational Circuits of Digital Circuits

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Correct choice is (c) Rotary switch

Explanation: A combinational circuit that selects one from many inputs is known as Multiplexer. A basic multiplexer principle can be demonstrated through the use of a rotary switch. Because rotary switch gives one output corresponding to their inputs.

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