In a circuit with a fixed voltage, what happens to the current if resistance is doubled?

Prepare for the DOST Science Exam. Utilize flashcards and multiple-choice questions with detailed explanations. Achieve success with clear, concise study materials and effective strategies.

Multiple Choice

In a circuit with a fixed voltage, what happens to the current if resistance is doubled?

Explanation:
Current is determined by I = V/R. With a fixed voltage, the current is inversely related to resistance. If resistance doubles, the current becomes V/(2R), which is half of the original current (V/R). So the current halves because the same push of voltage encounters twice as much opposition. The other options would require changing the voltage or the relationship between V and R in a different way.

Current is determined by I = V/R. With a fixed voltage, the current is inversely related to resistance. If resistance doubles, the current becomes V/(2R), which is half of the original current (V/R). So the current halves because the same push of voltage encounters twice as much opposition. The other options would require changing the voltage or the relationship between V and R in a different way.

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