In a DC circuit, increasing resistance while maintaining voltage has what effect on amperage?

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 a DC circuit, when the resistance increases while maintaining a constant voltage, the amperage, or current, will decrease. This relationship can be understood through Ohm's Law, which states that the current (I) in a circuit is equal to the voltage (V) divided by the resistance (R). Mathematically, this is expressed as I = V/R.

When voltage remains constant and resistance increases, the denominator of the equation becomes larger, which results in a smaller value for the current. Therefore, as resistance increases, the amount of current flowing through the circuit decreases. This fundamental principle is crucial for understanding how electrical circuits function and how different components can affect overall performance.

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