Linear circuit relationship

Ohm's law

Inputs

Applied voltageVVoltage across one ideal resistor in the displayed DC relationship.

ResistanceRConstant ideal resistance of the single displayed component.

Circuit currentI

Resistor powerP

V = IR; P = VI = V²/R

A first-pass number, not a code check, certification, or approval. Read the method and its limits below. What this is and is not.

Calculation snapshot

Formula version 1.0.0

Applied voltage	24
Resistance	12

V = IR · P = VI = V²/R

OpenStax electrical-power reference: https://openstax.org/books/university-physics-volume-2/pages/9-5-electrical-energy-and-power

This printout is a record of displayed inputs and deterministic formula output. It is not an approval, certification, or engineering conclusion.

Method

Inspect current and resistor power from voltage and resistance in a single ideal DC-resistor relationship.

V = IR; P = VI = V²/R

When

Don’t

This is one ideal DC resistor with constant resistance. It does not size wire, protection, a power source, thermal management, or any electrical installation, and it excludes AC, transients, and nonlinear components.