Red Seal Electrician Practice
DC circuitsQuestion 764 of 1506

Two cells have the same chemistry. One is large and one is small. How do their voltage and internal resistance compare?

  1. Same voltage; the larger cell has lower internal resistance
  2. Same voltage; the larger cell has higher internal resistance
  3. Higher voltage for the smaller cell; lower resistance
  4. Higher voltage for the larger cell; same resistance
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Correct answer: Same voltage; the larger cell has lower internal resistance

Size does not change voltage. A larger electrode area in the electrolyte lowers the resistance.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 11.2: Battery Construction

Practice dc circuits

Questions last reviewed: 18 October 2026