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Three of these are wrong. Find the one that holds.

Exercise and reference answers

Questions
  1. Question
    Three of these statements about SI units are false.
    Choices
    1. Item
      The ampere is a base unit
      Correct
      Yes
    2. Explanation
      It is derived from base units.
      Item
      The newton is a base unit
    3. Explanation
      It is a derived unit with a name.
      Item
      The watt is a base unit
    4. Explanation
      It has seven.
      Item
      SI has nine base units

Explanation

Each trap misclassifies a unit. Source: syllabus Physics, Ch 1 Units and Measurement.
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