mA and Writing

[biferi]

Am I right that 5 mA I would write it out as 0.005
And 8 mA I would Write it out as 0.008

But when you get to 10 mA do you Write it as 0.010

Thanks for the help

 

[crutschow]

Yes, but for completeness it should be 0.005 A and 0.010 A where A stands for amperes.

m stands for milli which is 1/1000 so you move the decimal point three places to the left when going from mA to A, as you have done.

 

[MikeMl]

0.01A = 10mA = 10,000uA = 0.00001kA = ...

 

[KMoffett]

Am I right that 5 mA I would write it out as 0.005
And 8 mA I would Write it out as 0.008

But when you get to 10 mA do you Write it as 0.010

Thanks for the help

Are you asking about why there is a trailing "0" on "0.010A" for 10mA instead of "0.01A"?

Ken

 

[KeepItSimpleStupid]

The 0.010 is more precise than 0.01 mathematically. It easy to use engineering notation like milli (-3), micro (-6), mano (-9) pico (-12), so 10 mA becomes 10E-3 Amps

There is a difference between 10, 10.0, 10.00 and 10.000000000 mA. Also don;t write numbers without the leading zero. e.g. write 0.1 and not .1

You can throw a book at "accuracy", "precision" and "repeatability" and there are rules to follow.

mV/k ohms is in units of Amps, but watch 100 mV/1000 ohms.