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Resistor Power (Current)

\(P = I^2 R\)

Instructions: Select the variable you want to solve for, and fill in the others.

Solve Symbol Input Value Unit Description
\(P\)
\(W\)
\(I\)
\(A\)
\(R\)
\(\Omega\)

References

  • TutorChase - Explains the significance of the P=I^2R equation (Joule's Law), its derivation from Ohm's Law, and its importance in predicting heat dissipation in electrical circuits for safe device design. ↗
  • All About Circuits - Comprehensive explanation of Joule's Law (P=I^2R) with historical context, derivation, and practical applications for calculating power dissipation in electrical circuits. ↗

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