ISRO Electronics & Communication (ECE) 2009 - Question 76

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Topic: Electronics Engineering

Which point in the Smith Chart is labeled with the WRONG impedance?
N.B. - Reference $Z_{0}$ is 50 $\Omega$

  • A. $10+j10$
  • B. $50+j50$
  • C. $200-j200$
  • D. $25-j50$

Answer: D. $25-j50$

Explanation: On the same resistance circle two different resistance value can't lie. According to the data $50+j50$ point is right but $25-j50$ is wrong point on the circle.

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