From: tonySent: Thursday, February 26, 2009 2:26 PMSubject: [50g] Re: electricity formulasThank you for the help guys.
I can get all the way to the input section (V,R) but when I press
the left shift and the "I" softkey for current, I get a "plot window-
function"???
any ideas?
thanks
Tony
--- In 50g@yahoogroups. com, "Juan C." <jcbuchin@.. .> wrote:
>
>
> Hello Tony, let's say you have a resistor of 25 ohm and you apply
120 V
> in its terminals and you want to find the power P and intensity I.
>
> Press [APPS] 12 [ENTER] or the OK soft key.
>
> Press EQLIB from the soft menu.
>
> Press EQNLI then the down-arrow key, to select Electricity and press
> [ENTER].
>
> Press the down-arrow key, to select Ohm's Law and Power and press
> [ENTER].
>
> You can use the up-arrow and down-arrow to look the formulas for
this
> section.
>
> From the soft menu press SOLV, a soft menu with the variables V I R
and
> P appears.
>
> To enter the resistor value, press 25 and then the soft key R.
>
> To enter the Voltage, press 120 and then the soft key V.
>
> To solve for the variable P (Power) press [left-shift] and then the
soft
> key P, the answer is P:576 W.
>
> To solve for the variable I (Intensity) press [left-shift] and then
the
> soft key I, the answer is I:4.8 A.
>
> To try another set of values press the soft key ALL and enter the
two
> knowns and solve for the two unknowns.
>
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Message
Re: [50g] Re: electricity formulas
2009-02-26 by Fred Hoeldtke
Send in your program for the value of two
resistances connected in parallel .
here is one way as a hint. < ->
a b < 'a*b/ a+b' > ->num > Try the same in other
formats like a RPL
program which can be easier
if you like RPL and
you must like RPL to get started. Do not
use the
automatic software in the device until you
have
simple arithmetic skill.