Red Seal Electrician Practice
DC circuitsQuestion 692 of 1506

An apprentice gets a divider answer that is bigger than the total current or total voltage. What is the likely mistake?

  1. The resistance ratio was written upside down
  2. Too many decimal places were used
  3. The wire gauge was ignored
  4. The source was assumed to be AC instead of DC
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Correct answer: The resistance ratio was written upside down

Both divider ratios must be less than one. A ratio above one means the fraction is inverted.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 6.3: Current Divider Circuits and the Current Divider Formula

Practice dc circuits

Questions last reviewed: 18 October 2026