 Welcome to Powers of Ten, the proper use of symbols. Electronics involves a wide range of numbers. The size of the numbers prohibits their use on electrical drawings, so the numerals are replaced by a term that represents a specific power of ten. The six common terms used to represent powers of ten in the field of electronics are mega, kilo, milli, micro, nano, and pico. The terms are represented by symbols when used to describe an electrical unit. Micro and pico are represented by the Greek letters mu and rho, while the rest are normal letters. Here is an example of each symbol being used. The units shown are one mega ohm, one kilo ohm, one milliamp, one microamp, one nanofarad, and one picofarad. Now, let's see if you can match the symbol with the correct term. Pause the video if you need more time. Next, try to match the symbol with the correct decimal value. Finally, see if you can match the symbol to the correct power of ten. Electronics involves a wide range of numbers. The size of the numbers prohibits their use on electrical drawings, so the numerals are replaced by a term that represents a specific power of ten. Write down the list below for your reference. You have completed this video, powers of ten, the proper use of symbols.