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

Question: 1 / 400

How does current behave in a circuit according to Ohm's law?

It is equal to voltage minus resistance

It is directly affected by changes in resistance

In a circuit, according to Ohm's law, current is directly affected by changes in resistance. Ohm's law states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance. This can be expressed mathematically as \(I = \frac{V}{R}\), where \(I\) represents the current, \(V\) is the voltage, and \(R\) represents the resistance.

When resistance increases, for a constant voltage, the current will decrease. Conversely, if resistance decreases, the current will increase. This direct relationship shows that current is indeed influenced by any changes in resistance, highlighting the fundamental interplay between voltage, current, and resistance in electrical circuits. Such an understanding is essential for diagnosing problems in circuits and designing them properly.

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It is inversely proportional to the square of the resistance

It remains constant regardless of voltage changes

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