What will happen to voltage if resistance decreases while amperage is held constant?

Study for the Heavy Duty Technician Exam. Prepare with flashcards and multiple choice questions, each question offers hints and detailed explanations. Ace your exam with confidence!

In electrical circuits, the relationship between voltage (V), current (I), and resistance (R) is described by Ohm's Law, which states that V = I × R. When the amperage, or current, is held constant and the resistance decreases, you can analyze what happens to the voltage.

If you decrease the resistance while keeping current constant, the equation suggests that voltage must also change. Specifically, since voltage is equal to current multiplied by resistance, a decrease in resistance with a fixed amount of current will result in a decrease in voltage. As resistance drops, and since the current remains the same, the overall product V = I × R indicates a lower voltage.

Thus, when resistance decreases while maintaining a constant amperage, the voltage will indeed decrease. This is a direct consequence of the fixed relationship defined by Ohm's Law, emphasizing how changes in resistance and current interplay to determine voltage in an electrical circuit.

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