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Ravi Shankar • 4.19K Points
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Q. It is required to construct a 2n-to-1 multiplexer by using 2-to-1 multiplexer only. How many of 2-to-1 multiplexers are needed ?

  • (A) n
  • (B) 2^2n
  • (C) 2^(n-1)
  • (D) 2^n-1
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