Red Seal Electrician Practice
DC circuitsQuestion 555 of 1506

The arrow in a diode symbol points in which direction?

  1. In the direction of electron flow
  2. Toward the negative supply terminal
  3. In the direction of conventional current flow
  4. Across the junction in both directions
Show answer

Correct answer: In the direction of conventional current flow

Device symbol arrows point against actual electron flow.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 1.7: Conventional Versus Electron Flow

Practice dc circuits

Questions last reviewed: 18 October 2026