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Question 195

What formula is used to calculate electrical power (P) in a DC circuit?

  1. P = I x ECorrect answer
  2. P = E / I
  3. P = I² x E
  4. P = I / E

Explanation

Power in a DC circuit is the product of voltage and current, P = I × E. Dividing them, as in P = E / I, gives resistance rather than power.

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Question 195: What formula is used to calculate electrical power (P) in a… · FCC Technician Class (Element 2) · Questena