Which term is defined as a prefix meaning one million?

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Multiple Choice

Which term is defined as a prefix meaning one million?

Explanation:
Understanding SI prefixes helps you read resistance, voltage, and frequency values quickly. The prefix for one million is mega- (symbol M). It’s a scaling factor you attach to any unit to indicate a multiplication by 10^6. For example, a megahertz is 1,000,000 hertz, and a megohm is 1,000,000 ohms. Megohm combines the mega- prefix with the unit ohm to name a specific quantity, but the term that names the prefix itself is mega- (not megohm). The other two prefixes shown, micro and milli, represent 10^-6 and 10^-3, respectively, while magneto isn’t a prefix at all.

Understanding SI prefixes helps you read resistance, voltage, and frequency values quickly. The prefix for one million is mega- (symbol M). It’s a scaling factor you attach to any unit to indicate a multiplication by 10^6. For example, a megahertz is 1,000,000 hertz, and a megohm is 1,000,000 ohms. Megohm combines the mega- prefix with the unit ohm to name a specific quantity, but the term that names the prefix itself is mega- (not megohm). The other two prefixes shown, micro and milli, represent 10^-6 and 10^-3, respectively, while magneto isn’t a prefix at all.

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