What is the unit of electrical resistance?
Resistance is measured in ohms, a fundamental unit in electrical theory that opposes current flow.
What does Article 100 of the NEC cover?
Article 100 provides essential definitions for terms used throughout the National Electrical Code.
Which law explains the relationship between voltage, current, and resistance?
Ohm’s Law states that voltage equals current times resistance (V = I × R).
What is the basic unit of electric current?
Electric current is measured in amperes, which represent the flow of electrons.
Which NEC article outlines general requirements for electrical installations?
Article 110 of the NEC provides foundational rules for safe and code-compliant electrical installations.
What is the purpose of grounding in electrical systems?
Grounding protects people and equipment by directing fault currents safely into the earth.
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What is the function of a conductor in an electrical circuit?
Conductors provide a path for electric current to flow within a circuit.
Which of the following is a correct definition from the NEC?
A 'Grounded Conductor' is one that is connected to the earth or to a conducting body that extends the ground connection.
What does the NEC stand for?
The NEC, or National Electrical Code, is the standard for safe electrical design, installation, and inspection.