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Question 198

How much current is required to deliver 120 watts at a voltage of 12 volts DC?

  1. 0.1 amperes
  2. 10 amperesBonne réponse
  3. 12 amperes
  4. 132 amperes

Explication

Rearranging the power law gives I = P / E = 120 / 12 = 10 amperes. Choosing 12 amperes simply repeats the supply voltage and 132 amperes adds the two numbers.

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Question 198: How much current is required to deliver 120 watts at a… · FCC Technician Class (Element 2) · Questena