Exponents - Giga Tera Pico Nano
In the Metric
System you will encounter prefixes for numbers. In electronics,
right from resistors to hard disks these units are used. So you have to
have in your memory, at least the ones below, so that you place the
correct value of cap or inductor in your circuit.
See SI Units or Metric Units
to read more about these. R, C and
L values are given these prefixes. We have resistors like 10
Tera Ohms of Glass Surface Resistance to 1 Micro Ohms of a Small Copper
Wire Resistance. 1 Pico Farad of Capacitance of two Large PCB Tracks in
a Multi Layer PCB to 10 Milli Farad of a Huge Electrolytic Power Supply
Filter. Then
Lastly 10 Nano Henrys Inductance of the Twisted Connector Cables in a
Computer and 1 Henry of a Powerful Choke that can kickback 10 Kilo
Volts when a 10 Amps current thru it is broken. Electronics is Fun, is
it Not.
Exponents
| Tera
|
1000,000,000,000
|
1.e+12
|
| Giga
|
1000,000,000
|
1.e+9
|
| Mega
|
1000,000
|
1.e+6
|
| Kilo
|
1000
|
1.e+3
|
| units
|
1 |
1.e+0
|
| milli
|
1 / 1000
|
1.e-3
|
| micro
|
1 / 1000,000
|
1.e-6
|
| nano
|
1 /
1000,000,000 |
1.e-9
|
| pico
|
1 /
1000,000,000,000 |
1.e-12
|
|