DC circuitsQuestion 1319 of 1506

A 120 V heater draws 2 A. What is its resistance?

  1. 60.0 Ω
  2. 240 Ω
  3. 118 Ω
  4. 104 Ω
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Correct answer: 60.0 Ω

R = V ÷ I = 120 V ÷ 2 A = 60.0 Ω.

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

Practice dc circuits

Questions last reviewed: 18 October 2026