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Practical skills assessed in a written examination

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Question 32

In a mass manufacturing facility of superconducting quantum interference devices (SQUIDs), approximately 0.024% of the microchips produced fail the initial low-temperature calibration test. Among the chips that fail, 3 out of 8 failures are due to Josephson junction degradation, while the remaining failures are due to flux trap contamination.

A production run yields a batch of 2.5 × 107 microchips.

Which of the following is the best estimate for the number of microchips in this batch that failed due to flux trap contamination?

2,2502,2502,250

3,7503,7503,750

6,0006,0006,000

37,50037,50037,500

Practical skills assessed in a written examination Questions

  1. A Level
  2. /Biology
  3. /Practical skills assessed in a written examination