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Which outcome occurs when a ground fault interrupter (GFI) detects an imbalance in circuit current?

A)Circuit is rapidly opened
B)Voltage is smoothly reduced
C)Resistance is gradually increased
D)Frequency is slightly modified

💡 Explanation

When a GFI detects current imbalance, electromagnetic induction causes a sensitive relay to trip the circuit because unequal current flow indicates a current leakage to ground. Therefore the circuit rapidly opens, instead of reducing voltage, increasing resistance, or modifying frequency each requiring alternate circuit control methods.

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