QuestenaPractice that shows what to review next
Question 198

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

  1. 0.1 amperes
  2. 10 amperesCorrect answer
  3. 12 amperes
  4. 132 amperes

Explanation

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.

Continue with this test

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