Ohm's Law/Power Law Calculator

Ohm's Law/Power Law Calculator


Ohm's law and the power law describe the relationship between the following four electrical entities:

Entity..............Unit.......Symbols

Voltage..........Volts......V
Current...........Amps.....A, I
Resistance.....Ohms.....Ω, R
Power............Watts.....W

Ohm's law: Voltage = Current x Resistance
Power law: Power = Voltage x Current

Set any two, and the other two can be calculated.

This application allows you to continually lock one parameter and input another, enabling rapid "what-if" recalculation.

Use the keypad to enter a value then tap on the parameter you want to set. It is now fixed, as shown by the padlock symbol.

Enter another parameter and the remaining two are calculated. The most recently entered parameter becomes the new fixed one.

You can alter which parameter is fixed by tapping it when the input box is empty, or by dragging the padlock to it.

You can "Freeze" a parameter with a long press until it changes color. Now alter any of the other three as required. To unfreeze, with the input box empty, tap any other parameter.

The value of the fixed parameter may not be changed. If you attempt to do so, the padlock will flash. In this case, fix another parameter first.


Available in the following Languages:
English, French, German, Swedish, Russian, Polish, Spanish, Italian, Traditional & Simplified Chinese.

Recent changes:
Added localizations for Traditional & Simplified Chinese
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Free
77
3.9
User ratings
170
Installs
10,000+
Concerns
0
File size
848 kb
Screenshots
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About Ohm's Law/Power Law Calculator
Ohm's law and the power law describe the relationship between the following four electrical entities:

Entity..............Unit.......Symbols

Voltage..........Volts......V
Current...........Amps.....A, I
Resistance.....Ohms.....Ω, R
Power............Watts.....W

Ohm's law: Voltage = Current x Resistance
Power law: Power = Voltage x Current

Set any two, and the other two can be calculated.

This application allows you to continually lock one parameter and input another, enabling rapid "what-if" recalculation.

Use the keypad to enter a value then tap on the parameter you want to set. It is now fixed, as shown by the padlock symbol.

Enter another parameter and the remaining two are calculated. The most recently entered parameter becomes the new fixed one.

You can alter which parameter is fixed by tapping it when the input box is empty, or by dragging the padlock to it.

You can "Freeze" a parameter with a long press until it changes color. Now alter any of the other three as required. To unfreeze, with the input box empty, tap any other parameter.

The value of the fixed parameter may not be changed. If you attempt to do so, the padlock will flash. In this case, fix another parameter first.


Available in the following Languages:
English, French, German, Swedish, Russian, Polish, Spanish, Italian, Traditional & Simplified Chinese.

Recent changes:
Added localizations for Traditional & Simplified Chinese

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User reviews of Ohm's Law/Power Law Calculator
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Android Market Comments
A Google User
Jun 25, 2014
Ohms law/power calculator Easy to use, very useful app. (When you know what your doing)
A Google User
Jun 4, 2014
Lousy apps. Lousy apps. It a waste of time.
A Google User
Mar 2, 2014
VERY easy to use! I am into Vaping. I have to figure out battery safety, on my mechanical vaporizer, in order to ensure safety. Love this calculator.
A Google User
Feb 3, 2014
Great App! And you don't have to do the math, Good Job!
A Google User
Jan 14, 2014
Great app I find it useful.