Ohm's Law Calculator

Ohm's Law is a fundamental principle in electrical engineering that describes the relationship between voltage, current, and resistance in electrical circuits.

Key Formulas:

• V = IR - Voltage equals current times resistance
• I = V/R - Current equals voltage divided by resistance
• R = V/I - Resistance equals voltage divided by current
• P = VI - Power equals voltage times current
• P = I²R - Power equals current squared times resistance
• P = V²/R - Power equals voltage squared divided by resistance

Electrical Concepts:

• Voltage (V): Electrical potential difference, measured in volts
• Current (I): Flow of electrical charge, measured in amperes
• Resistance (R): Opposition to current flow, measured in ohms
• Power (P): Rate of energy transfer, measured in watts

Common Applications:

• Circuit design and analysis
• Electrical safety calculations
• Power consumption estimation
• Component selection
• Troubleshooting electrical systems

Units:

• Voltage: Volts (V)
• Current: Amperes (A)
• Resistance: Ohms (Ω)
• Power: Watts (W)