Hi Biswanath,

I don't want to be a pest in your life, but by the fact
that you are learning, you would understand if I correct 
you in few things, and I am sure some other people 
around will learn it too.

In electronics there are few standards, and it help us
to communicate universaly with almost no problems.

If you learn this now, you will never forget and will
start with the right foot.

all thousands references are lower case, as;

 milli (m) 0.001
 micro (µ) 0.000,001
 nano  (n) 0.000,000,001
 pico  (p) 0.000,000,000,001
 deca  (d) 10
 centi (c) 100
 kilo  (k) 1,000
 Mega  (M) 1,000,000 (upper case because the -m- milli)
 Giga  (G) 1,000,000,000 (upper case because -g- gram)
 ...others 

 Ohms,      or R  Resistance
 Farads,    or F  Capacitance
 Henris,    or H  Inductance
 Volts,     or V     
 Current,   or I, or Ampere(s)
 Impedance, or Z
 Hertz,     or Hz

For example, milli is just "m" it is not an abreviation
form, so it does not carry the dot "m." 
Start using the right denomination as much as possible
and quickly you will do it without any effort.

10kOhms, or R10k, not 10K, someone can confuse it with 
10 Kelvin degrees.

10uF, not 10mfd, someone can mixup it with milliFarads
or some bad name.

Meter (m) doesn't make confusion with milli (m) since
milli alone doesn't exist. It is quantifying some other
unit, as Volts, grams, even meters (mV, mg, mm).

It is incorrect use the letter "u" for micro, but as
it doesn't make any confusion with anything else, and
as the symbol "µ" is not available directly at the
keyboard, we understand and don't care... grrrr!

I already saw many ways to represent the SI standards,
and everytime I see it wrong, my soul get iced.  
Terrors of the standards:
"mts." for "meters", instead the simple "m",
"hrs." for "hours", "mints." for minutes,  
"K" for "kilo", worse, KG for "kilogram", 
looks like "a Kelvin degree in free falling
acceleration at G (gravity) 10m^2/s . 

Degrees use the "¡" symbol, as ¡F or ¡C, to type it
just press and hold ALT+SHIFT and type 0 1 7 6 at the
numeric keypad.

The same for "µ" ALT+SHIFT+0181 (not 181)
             "¸" ALT+SHIFT+0189 
             "¹" ALT+SHIFT+0188
             "²" ALT+SHIFT+0190

So, make my soul warm... :)

I am sorry, I was born in Brazil, and we use metric
system there, so don't ask me why here in US we use
"lb" and say "pounds"...  or at price lists we use
to write "$150/mil" to represent $150 per thousand...
(I understand because in Portuguese that's perfect,
mil = thousand).
--------------------------------------------------------
Wagner Lipnharski - UST Research Inc. - Orlando, Florida
Forum and microcontroller web site:  http://www.ustr.net
Microcontrollers Survey:  http://www.ustr.net/tellme.htm