Red Seal Electrician Practice
DC circuitsQuestion 561 of 1506

A current of 3 A flows for 10 s. How much charge moves past a point?

  1. 0.3 C
  2. 13 C
  3. 30 C
  4. 3 C
Show answer

Correct answer: 30 C

1 A is 1 C per second, so 3 A x 10 s = 30 C.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 2.1: Ohm’s Law - How Voltage, Current, and Resistance Relate

Practice dc circuits

Questions last reviewed: 18 October 2026