DC circuitsQuestion 1322 of 1506

A 240 V heater draws 5 A. What is its resistance?

  1. 48.0 Ω
  2. 1200 Ω
  3. 83.1 Ω
  4. 235 Ω
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Correct answer: 48.0 Ω

R = V ÷ I = 240 V ÷ 5 A = 48.0 Ω.

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

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Questions last reviewed: 18 October 2026