Florida Home Inspector Practice Test 2025 – Comprehensive Exam Prep

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Question: 1 / 400

Electrical resistance is measured in what unit?

Volts

Amperes

Ohms

Electrical resistance is measured in ohms, which is the SI (International System of Units) unit specifically designed to quantify resistance in an electrical circuit. According to Ohm's Law, resistance is defined as the ratio of voltage (in volts) across a conductor to the current (in amperes) flowing through it. This relationship illustrates how much a material opposes the flow of electric current.

Understanding this unit is essential for anyone involved in electrical inspections or applications. Volts measure electrical potential, amperes measure the flow of current, and watts represent power, which is the rate of energy transfer. In contrast, ohms focus strictly on the resistance component of an electrical circuit, making it crucial for evaluating and troubleshooting electrical systems in homes.

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Watts

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