Red Seal Electrician Practice
DC circuitsQuestion 551 of 1506

In a simple lamp circuit with a battery, how does the voltage across the connecting wires compare with the voltage across the lamp?

  1. It is about the same as across the lamp
  2. It is the full battery voltage
  3. It is zero in every case
  4. Very small, since the wire resistance is far lower
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Correct answer: Very small, since the wire resistance is far lower

Voltage drop is proportional to resistance when the current is the same.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 1.6: Voltage and Current in a Practical Circuit

Practice dc circuits

Questions last reviewed: 18 October 2026