Calculate electrical power in circuits using voltage and current, or combinations with resistance. Determine power dissipation in components.
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How this calculator works
Electrical power equals voltage times current. Can also be expressed using resistance with Ohm's law.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
