As resistance increases, what happens to current (with voltage constant)?

Prepare for the Automotive Service Technician Period 1 exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Holding the voltage fixed, current is determined by I = V / R, so it changes inversely with resistance. When resistance increases, the same voltage drives fewer charge carriers per second, causing the current to fall. For example, doubling the resistance halves the current. That’s why the statement about current decreasing is the best description. The voltage isn’t changing in this scenario, and while power would also tend to decrease as current drops at constant voltage, the question is specifically about how current responds to rising resistance.