QUESTION TYPE: Must be True
- Small experimental vacuum tubes can operate in high heat that would cause semi-conductors to fail.
- It would be nice if (for digital circuits) we could have a component that does everything a semi-conductor does but that also resists heat better.
- Vacuum tubes don’t have the same current capacity as semi-conductors.
ANALYSIS: This supports the idea that vacuum tubes can’t replace semi-conductors in digital circuitry. They lack the necessary current capacity.
- CORRECT. Their heat resistance is nice, but any semi-conductor replacement would have to do other things too, like have a good current capacity.
- Hard to say. Vacuum tubes might have some other massive flaw compared to semi-conductors.
- This is basically the same answer choice as B, worded differently. There could be some other huge problem with vacuum tubes. Maybe they don’t do anything that semi-conductors can do, apart from resisting heat.
- We have no clue. We don’t even know what vacuum tubes and semiconductors do. Maybe semi-conductors are terrible for most things that aren’t digital circuitry.
- We have no idea. The stimulus didn’t tell us anything else about what vacuum tubes can and can’t do.
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