• Ohm's Law V = IR therefore I = V / R You need to know V to get the answer.
  • Easy. Power is defined as current times voltage. Ohm's Law states that voltage is current times resistance. P = IV and V= IR. Substitute V=IR into P=IV to get P = I
    • bostjan the adequate 🥉
      It cut off my answer. I guess I can't use any ASCII symbols. Anyway, if the maximum power is 2 W, the maximum current is the square root of 2W/53ohms, so roughly 194 mA.

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