Electrician's Licensing Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Which type of relationship exists between voltage and current in a resistive circuit?

Inversely proportional

Directly proportional

In a resistive circuit, the relationship between voltage and current is described by Ohm's Law, which states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points. This is mathematically represented as V = I × R, where R is the resistance in ohms.

Because resistance remains constant in a purely resistive circuit, if the voltage increases, the current also increases in a linear fashion, and vice versa. This means that as one variable increases, the other also increases, demonstrating a direct relationship. This principle is fundamental in electrical engineering and is critical for understanding how devices operate within resistive loads.

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