A megger is used to test what property?

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Multiple Choice

A megger is used to test what property?

Explanation:
A megger tests insulation resistance. It applies a high DC voltage and measures how much leakage current flows, reporting the resistance in megohms. If the insulation is in good condition, the resistance is high; if there are defects, moisture, or contamination, the resistance drops and leakage increases. This is distinct from measuring temperature, stripping insulation, or checking continuity—those tests assess temperature changes, physically removing insulation, or whether a circuit is currently complete at low voltage, not how well the insulation resists current under high voltage.

A megger tests insulation resistance. It applies a high DC voltage and measures how much leakage current flows, reporting the resistance in megohms. If the insulation is in good condition, the resistance is high; if there are defects, moisture, or contamination, the resistance drops and leakage increases. This is distinct from measuring temperature, stripping insulation, or checking continuity—those tests assess temperature changes, physically removing insulation, or whether a circuit is currently complete at low voltage, not how well the insulation resists current under high voltage.

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