[Newbie] Ohm, Ampere, Volt units

[Alexander Groß]

Hi everyone,

me (a Mathematica beginner) was trying to let Mathematica do the work. I
have a very simple equation which I want Mathematica to solve and compute
units.

Resistor = 1 Mega Ohm;
Voltage = 1 Milli Volt;
Current = Voltage / Resistor

Mathematica displays the solution of current in [Milli Volt] / [Mega Ohm].
That's not what I would like to see. I would like to resolve the units as
follows:

[Milli Volt] / [Mega Ohm] = [Milli Volt]/ [Mega [Volt / Ampere]] = [Nano
Ampere]

I tried the Convert[] function to achieve the desired output, but in vain.
Does anybody know how to tell Mathematica to display Ampere?

Thanks for your time and help.

Best regards,

Alex

[Alexander Groß]

| Mathematica displays the solution of current in [Milli Volt] / [Mega
| Ohm]. That's not what I would like to see. I would like to resolve
| the units as follows:
|
| [Milli Volt] / [Mega Ohm] = [Milli Volt]/ [Mega [Volt / Ampere]] =
| [Nano Ampere]

The issue has been resolved. Now I use V4ExtendUnits which is available at
http://home.earthlink.net/~djmp/Mathematica.html.

Resistor = 1 Mega Ohm;
Voltage = 1 Milli Volt;
Current = Voltage / Resistor // ToUnit[Ampere, UnitForm -> (PrefixForm[#1,
3] &)]

gives

1.00 Nano Ampere

Best regards,

Alex