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Free Journeyman Electrician Exam (ICC) Practice Questions
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Question 1 of 10General Knowledge
While reviewing two proposed fixes for a 240-volt resistive process heater that is drawing more current than the crew wants on an aging feeder, a shop supervisor compares Option A, which drops the heater's resistance from 24 ohms to 20 ohms to run it harder, against Option B, which raises the resistance to 30 ohms to ease the load. Given Ohm's Law, which change actually reduces the current the feeder has to carry?
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