Electrical IBEW Practice Test 2025 - Free IBEW Practice Questions and Study Guide.

Ohm's Law is a fundamental principle in electrical engineering that defines the relationship between voltage, current, and resistance in an electrical circuit. According to this law, voltage is equal to current multiplied by resistance. This mathematical expression is often represented as V = I × R, where V stands for voltage, I represents current, and R denotes resistance.

In practical terms, this means that if you know the current flowing through a circuit and the resistance of that circuit, you can calculate the voltage across that circuit. This relationship is critical for designing circuits and troubleshooting electrical systems, as it allows engineers and electricians to ensure that circuits operate within safe and efficient limits.

The other options do not accurately reflect the relationship described by Ohm's Law. For example, adding current and resistance doesn't yield a meaningful electrical quantity, and dividing current by resistance or resistance by current does not correspond to any relevant principle in circuit analysis. Thus, the correct understanding of Ohm's Law focuses on the multiplication of current and resistance to determine voltage.