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Compare a decoder and a demultiplexer with suitable block diagrams.
Ans. Demultiplexer has similar circuit as decoder but here e is obtained as the particular input line, the output lines are similar as decoder (that is max 2n). The information at E will be converted to one of the output line and the output line will be selected through bit combination of n select lines.
Block diagrams of a decoder and a demultiplexer
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