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International System of Units
The International System of Units (SI), adopted by the General Conference on Weights and Measures in 1960. There are six (5) principal units from which the units of
all other physical quantities can be derived. Table 1 below shows the six units, their symbols, and the physical quantities they represent. The SI units are used are used by professionals irrespective of their geographical location.
One great advantage of the SI unit is that it uses prefixes based on the power of 10 to relate larger and smaller units to the basic unit. Table 2 shows the SI prefixes and their symbols.
1,000,000 mm = 1,000 m = 1 km
1. Fundamentals of Electric Circuits, 3rd Ed.
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How many basic units are there for the SI units.Correct
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What is the unit for luminous intensity?Correct
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How many meters are there in 10 millimeters?Correct
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How many kilograms are there in 20 hectograms?Correct