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Silicon Validation Intern
Write a real answer. It is graded against the question's stored rubric, the mastery movement is computed by the same engine the product uses, and — the part worth watching — the next question is chosen by the real scheduler from what you have already answered. Nothing is saved.
One difference worth stating plainly: scoring here is deterministic rather than model-written, so this page costs nothing to run and cannot be used to burn anyone else's tokens. In a real track the same rubric is graded by the model, which is what produces feedback about your specific reasoning rather than about coverage.
Same bench as before: 100 MHz scope, 10x passive probe. Assume the probe is not the limiting element.
You measure a 7.0 ns rise time on a 100 MHz oscilloscope. Taking the scope's rise time as 0.35 divided by its bandwidth, and treating the measured, true and instrument rise times as combining in root-sum-square, what is the signal's actual rise time? Give the number, then say whether you would trust it.
This one resolves to a number. Give the value in the field below and your reasoning in the box — the number is checked exactly, by arithmetic.