Fundamental Circuit Physics

Ohm's Law Master 4-in-1 Solver

Universal circuit analysis, physics students, EE engineers, electronics repair. User inputs any 2 of (V, I, R, P), system solves the remaining 2 variables automatically using 12 standard Ohm's and Watt's Law formulas.

⚡ Ohm's Law Master 4-in-1 Solver

Voltage (V)

Current (I)

Resistance (R)

Ohms

Power (P)

Calculated Result

Instant Calculation

Auxiliary Value

Engineering Output

Step-by-Step Derivation ▼ Show Steps

Governing Formula Verified Physics

V = I × R | P = V × I | P = I² × R | P = V² / R

Calculations adhere to standard electrical equations and National Electrical Code guidelines.

Engineering Principles & Calculations

This calculator uses the exact mathematical relationships between Any 2 of: Voltage (V), Current (A), Resistance (Ω), Power (W) to determine Remaining 2 values + visual formula wheel highlighted. In practical applications, electrical systems must account for safety derating factors, nominal vs actual voltages, and conductor resistance losses.

User inputs any 2 of (V, I, R, P), system solves the remaining 2 variables automatically using 12 standard Ohm's and Watt's Law formulas.

Typical Application & Best Practices

Universal circuit analysis, physics students, EE engineers, electronics repair.

Reference Matrix