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Hardware Test Engineering 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 and no tokens are spent.
A board runs I2C in fast mode at 400 kHz. What is the nominal bit period, and what does that number constrain about the pull-up resistors and the bus capacitance?
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.