Ohm's Law & Power Law Calculator
Utilities
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
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 colour. 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, Chinese (Traditional & Simplified).
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If you find any errors, or have any suggestions, please email us the details & we will address them!
support@cressall.com
This update from Apple will improve the functionality of this app. No new features are included.
Latest iOS support(64 Bit). Minor UI improvements.
The developer, Cressall Resistors Ltd, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.
No Details Provided
The developer will be required to provide privacy details when they submit their next app update.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Cressall Resistors Ltd
- Size
- 1.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 8.0 or later.
- iPhone
Requires iOS 8.0 or later. - iPod touch
Requires iOS 8.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 10 more
- English, French, German, Hindi, Italian, Polish, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2017 Cressall Resistors Ltd