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TechnologyGenerated accuracy model review: 2026-05-06

Ohms Law accuracy and testing

This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.

Formula source

  • The calculator uses variations of two primary formulas: 1. **Ohm's Law:** $V = I \times R$ (Voltage = Current × Resistance) 2. **Power Law:** $P = V \times I$ (Power = Voltage × Current)

Test cases

Default input regression check

Generated from the checked-in default inputs and calculate function.

Inputs

  • Voltage (V): 0
  • Current (I): 0
  • Resistance (R): 0
  • Power (P): 0

Expected outputs

  • Voltage (V): Invalid input
  • Current (I): Invalid input
  • Resistance (R): Invalid input
  • Power (P): Invalid input

Known limitations

  • This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
  • Use the result as a planning estimate unless the calculator page states a stricter purpose.

Assumptions

  • The calculator expects exactly two known positive inputs and treats 0 as unknown.
  • This tool models a simple resistive circuit using DC-style Ohm's Law and Power Law relationships.
  • Invalid combinations, such as fewer or more than two known values or division by zero, return an invalid state.

Unit handling

  • Voltage (V) accepts numeric values.
  • Current (I) accepts numeric values.
  • Resistance (R) accepts numeric values.
  • Power (P) accepts numeric values.
  • Voltage (V) is displayed in Volts.
  • Current (I) is displayed in Amps.
  • Resistance (R) is displayed in Ohms.
  • Power (P) is displayed in Watts.

Rounding rules

  • Number displays use up to 2 decimal places in the calculator UI.

Version history

1.0.0 - 2026-05-06

Generated accuracy and testing page from the current ohms-law-calculator calculator definition.

Change log

2026-05-06

Published default regression test documentation and metadata fallbacks for Ohms Law.

Calculator transparency

Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.

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