Subelement A: — Topic :
Question 6A31
Element 6 (Radiotelegraph)The prefix " micro " means:
Explanation
The prefix "micro" is part of the International System of Units (SI) and represents a factor of 10⁻⁶. This means that a "micro" quantity is one-millionth (1/1,000,000) of the base unit. Therefore, to find the value of a quantity expressed with the "micro" prefix, you would divide the numerical value by 1,000,000.
For example, 1 microvolt (µV) is 1/1,000,000 of a volt, and 1 microamp (µA) is 1/1,000,000 of an amp. These prefixes are essential in amateur radio for expressing very small measurements, such as signal strengths or capacitance values.
Option B describes the prefix "mega" (10⁶). Option D describes "milli" (10⁻³). Option C is incorrect as SI prefixes denote multiplication or division, not addition.
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