Transistor — Questions and answers

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What was the name of the first working transistor made by Walter Brattain and John Bardeen?

Choices

  1. The junction transistor
  2. The field-effect transistor
  3. The point-contact transistor ✓
  4. The vacuum tube

Answer: The point-contact transistor

From page 4

What new design did William Shockley imagine for his transistor, different from surface contacts?

Choices

  1. More 'cat's whiskers'
  2. A 'sandwich' of semiconductor materials (P-N-P or N-P-N junction) ✓
  3. A bigger vacuum tube
  4. A complicated wiring system

Answer: A 'sandwich' of semiconductor materials (P-N-P or N-P-N junction)

From page 6

What was a main improvement of Shockley's junction transistor compared to the point-contact design?

Choices

  1. It was much bigger
  2. It used more power
  3. It was more stable and predictable ✓
  4. It had more surface contacts

Answer: It was more stable and predictable

From page 7