Ohm's Law Calculator
Calculate voltage, current, resistance, and power using Ohm's Law (V=IR). Essential for electrical engineering and electronics.
Calculate voltage, current, resistance, and power using Ohm's Law (V=IR). Essential for electrical engineering and electronics. Enter your Voltage (V), Current (I), Resistance (R) to get an instant voltage. Formula: current * resistance.
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Formula
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How It Works
Ohm's Law
Ohm's Law (V=IR) describes the relationship between voltage, current, and resistance in electrical circuits.
Power Calculation
Power (P) can be calculated as P = V×I, P = I²R, or P = V²/R.
Frequently Asked Questions
What is Ohm's Law?
Ohm's Law states that voltage (V) = current (I) × resistance (R). It's fundamental for circuit design.
How do I calculate power?
Power = Voltage × Current (P = V × I). Power is measured in watts (W).
What units are used?
Voltage in volts (V), current in amperes (A), resistance in ohms (Ω), power in watts (W).
Disclaimer
This calculator provides estimates for informational purposes only. It is not professional advice. Verify results with a qualified professional. Disclaimer.