ISRO Electronics & Communication (ECE) 2006 - Question 28

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Topic: Digital Circuits

Gray code for number 7 is

  • A. 1100
  • B. 1001
  • C. 0110
  • D. 0100

Answer: D. 0100

Explanation: The binary representation for 7 is 0111. To convert to Gray code: keep the MSB (0). Next bit = 0 XOR 1 = 1. Next bit = 1 XOR 1 = 0. Next bit = 1 XOR 1 = 0. Thus, the Gray code is 0100.

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