ARRL Technician Practice Exam

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How many volts are equal to one microvolt?

  1. One one-hundredth of a volt

  2. One one-thousandth of a volt

  3. One one-millionth of a volt

  4. One volt

The correct answer is: One one-millionth of a volt

One microvolt is defined as one one-millionth of a volt. This is a standard unit of measurement in the International System of Units (SI), where the prefix "micro-" denotes a factor of \(10^{-6}\). Therefore, when you encounter the term microvolt, it directly correlates to the value of one volt divided by one million. Understanding this relationship is crucial for interpreting measurements in various applications, particularly in electronics and radio communications, where very small voltage levels are common. The other choices represent different magnitudes of voltage but do not align with the definition of a microvolt. Recognizing these differences is important for clarity and accuracy in your studies.

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