Red Seal Electrician Practice
DC circuitsQuestion 690 of 1506

Two parallel branches are fed by the same source. Branch B has twice the resistance of branch A. How do the branch currents compare?

  1. Both branches carry the same current
  2. Branch B carries four times the current of branch A
  3. Branch B carries twice the current of branch A
  4. Branch B carries half of A's current
Show answer

Correct answer: Branch B carries half of A's current

The voltage is the same across both branches, so current is inversely proportional to resistance.

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