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TABLE A-5 POWERS of 10
Rules associated with powers of ten - h1011v1_81

Electrical Science Volume 1 of 4
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METRIC SYSTEM AND POWERS OF TEN Basic Electrical Theory Rules associated with powers of ten are as follows: Rule 1: To express numbers larger than 1 as a small number times a power of 10, move the decimal point to the left as many places as desired.  Then multiply the number obtained by 10 to a power that is equal to the number of places moved. Example: To convert 6,000,000, move the decimal point 6 places to the left (6.000,000), then multiply 6 times 10 raised to a power equal to the number of decimal places moved, obtaining 6 x 106. 6,000,000 = 6 x 106 Rule 2: To express numbers less than 1 as a whole number times a power of 10, move the decimal point to the right as many places as desired.   Then multiply the number obtained by 10 to a negative power that is equal to the number of places moved. Example: To convert  0.004A,  move  the  decimal  point 3  places  to  the  right (004.), then multiply 4 by 10 raised to a negative power equal to the number of decimal places moved, obtaining 4 x 10-3A. 0.004A = 4 x 10-3A Rule 3: To convert a number expressed as a positive power of 10 to a decimal number, move the decimal point to the right as many places as the value of the exponent. Example: To convert 1 x 103W, move the decimal point 3 places to the right (1000.0), then drop the multiple of power of 10, obtaining 1,000. 1 x 103 = 1,000W ES-01 Page A-6 Rev. 0







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