If the voltage doubles while resistance remains constant, what happens to the current?

Prepare for the ASVAB Electronics section with multiple-choice questions and detailed explanations. Boost your confidence and ace the exam with comprehensive study tools!

Multiple Choice

If the voltage doubles while resistance remains constant, what happens to the current?

Explanation:
In circuits, current is proportional to voltage when resistance is constant. This comes from Ohm’s law, I = V/R. If the resistance stays the same and the voltage doubles, the current must double as well because I scales directly with V when R is fixed. For example, if the voltage goes from 6 V to 12 V with the same resistance, the current goes from 2 A to 4 A. So the current doubles.

In circuits, current is proportional to voltage when resistance is constant. This comes from Ohm’s law, I = V/R. If the resistance stays the same and the voltage doubles, the current must double as well because I scales directly with V when R is fixed. For example, if the voltage goes from 6 V to 12 V with the same resistance, the current goes from 2 A to 4 A. So the current doubles.

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