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MMLU-Pro / 11962 / The three stages of a cascadedamplifier,have power gains G_1 = 15, G2= 10 and…

Problem

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question

The three stages of a cascadedamplifier,have power gains G_1 = 15, G2= 10 and G_3 = 5 respectively. If the effective inputnoise temperatures are T_(e)1 = 1350K, T_(e)2 = 1700K andT_(e)3 = 2500K, determine, (a)overalleffective noise temperature and (b)orderingof the cascaded stages to achieve optimum noiseperformance.

category

engineering

options

  1. 1480K, lowest gain first
  2. 1700K, lowest gain first
  3. 1480K, highest gain first
  4. 2500K, lowest gain last
  5. 1350K, random ordering of gain stages
  6. 2000K, random ordering of gain stages
  7. 1700K, highest gain last
  8. 2000K, highest gain last
  9. 2500K, highest gain first
  10. 1350K, highest gain last

src

stemez-ElectronicCommunications

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Source and history

upstream_id / Original problem ID
11962
task_id
d5d79494-4f20-51a0-aa9d-531cfb6ecd16
task_key
default--test--11962
task_revision_id
1
config / split
default / test

Official source

initial import