Electrical

Ohm's Law Calculator — ChiefEngineer.in

Calculate resistance and power from voltage and current.

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Formula

V = IR
P = VI = I²R = V²/R

Variables

  • V — voltage
  • I — current
  • R — resistance
  • P — power

Worked Example

Input: 230 V, 5 A

Result: R = 46 Ω, P = 1150 W

Assumptions & Notes

Ohm's law for resistive DC or purely resistive AC.

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