METRIC SYSTEM AND POWERS OF TEN Basic Electrical TheoryTable A-6 shows the metric prefixes expressed as powers of 10.TABLE A-6METRIC PREFIXES EXPRESSEDas POWERS of 10MetricPrefix Powerof10mega (M) 106kilo (k) 103milli (m) 10-3micro (µ) 10-6nano (n) 10-9pico (p) 10-12Electrical units can be expressed in different, but equivalent, units by using prefixes expressedin powers of 10.Examples:Express 780,000 W in Megohms (MW).1W = 10-6 MW780,000 W = 780,000 W x 10-6 = 0.78 MWExpress 4.5 V in millivolts (mV).1 V = 103 mV4.5 V = 4.5 x 103 mV = 4500 mVES-01 Page A-8 Rev. 0
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business