An ohmmeter reading of 2.4 MΩ could be expressed as:

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Multiple Choice

An ohmmeter reading of 2.4 MΩ could be expressed as:

Understanding ohm prefixes helps here: megaohm means a million ohms. So 2.4 MΩ equals 2.4 × 10^6 Ω, which is 2,400,000 Ω. The option written as 2 400 000 Ω is simply that same value in base units (Ω) without the mega prefix, which is why it’s the best-matched expression. In practice, 2.4 MΩ and 2,400,000 Ω are the same resistance, but the question asks for an expression in ohms, so the base-unit form is preferred. The other options represent different magnitudes (thousands or hundreds of thousands of ohms) and do not equal 2.4 × 10^6 Ω.

Understanding ohm prefixes helps here: megaohm means a million ohms. So 2.4 MΩ equals 2.4 × 10^6 Ω, which is 2,400,000 Ω. The option written as 2 400 000 Ω is simply that same value in base units (Ω) without the mega prefix, which is why it’s the best-matched expression. In practice, 2.4 MΩ and 2,400,000 Ω are the same resistance, but the question asks for an expression in ohms, so the base-unit form is preferred. The other options represent different magnitudes (thousands or hundreds of thousands of ohms) and do not equal 2.4 × 10^6 Ω.

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