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Communication SystemsNoise in Communication Systems

If receiver bandwidth is doubled while temperature remains constant, the available thermal-noise power ideally?

  • AHalves
  • BRemains unchanged
  • CDoubles
  • DQuadruples
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Correct Answer: C. Doubles
Explanation: From N=kTB, noise power is directly proportional to bandwidth, so doubling B doubles N.
Reference: Standard communication systems: noise bandwidth relationship
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