DC circuitsQuestion 1321 of 1506

A 347 V heater draws 5 A. What is its resistance?

  1. 69.4 Ω
  2. 120 Ω
  3. 342 Ω
  4. 1735 Ω
Show answer

Correct answer: 69.4 Ω

R = V ÷ I = 347 V ÷ 5 A = 69.4 Ω.

Source: Computed, 2.1: Ohm’s Law - How Voltage, Current, and Resistance Relate

Practice dc circuits

Questions last reviewed: 18 October 2026