Nate Electrical Practice Exam 2026 - Free Electrical Practice Questions and Study Guide

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What does the term "megohm" specifically refer to?

A unit of power

A unit of electrical resistance equal to one million ohms

The term "megohm" specifically refers to a unit of electrical resistance that is equal to one million ohms. This measurement is fundamental in the field of electricity and electronics, as it quantifies how much a material opposes the flow of electric current.

In practical terms, when an electrical circuit design requires high resistance components or evaluations, the use of megohms is common. This unit helps professionals and engineers address issues related to insulation resistance or the performance of various electronic components. Understanding that one megohm equals one million ohms allows technicians to better interpret and calculate resistance in complex circuits, which is crucial for ensuring proper functionality and safety in electrical systems.

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A measure of current flow

A type of circuit configuration

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