📊 Communication Engineering
Q. Half power bandwidth is also called
  • (A) absolute bandwidth
  • (B) null to null bandwidth
  • (C) 3 db bandwidth
  • (D) zero db bandwidth
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✅ Correct Answer: (C) 3 db bandwidth

Explanation: half power bandwidth is also called the 3 db bandwidth. it is defined as the interval between frequencies at which the psd has dropped to half power, or 3 db below the peak value.

Explanation by: Ram Sharma
half power bandwidth is also called the 3 db bandwidth. it is defined as the interval between frequencies at which the psd has dropped to half power, or 3 db below the peak value.

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