科学

オームの法則計算機

オームの法則で電圧・電流・抵抗・電力を計算

使い方
  1. Select what you want to solve for: Voltage, Current, or Resistance.
  2. Enter the values for the other two variables.
  3. Click 計算する to compute the missing value and the total power in Watts.

計算式

Ohm's Law formulas:

  • Voltage (V) = Current (I) × Resistance (R)
  • Current (I) = Voltage (V) ÷ Resistance (R)
  • Resistance (R) = Voltage (V) ÷ Current (I)

Power (P) = Voltage (V) × Current (I)