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Question 225

How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?

  1. 2.4 wattsCorrect answer
  2. 24 watts
  3. 6 watts
  4. 60 watts

Explanation

Power is voltage times current: 12 volts times 0.2 amperes equals 2.4 watts. The larger answers come from misplacing the decimal point in 0.2 amperes.

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Question 225: How many watts of electrical power are consumed by a 12 VDC… · FCC General Class (Element 3) · Questena