When there is an imbalance of current between the hot and neutral conductors of a circuit, the GFCI:

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Multiple Choice

When there is an imbalance of current between the hot and neutral conductors of a circuit, the GFCI:

Explanation:
A GFCI protects by sensing the difference between the current going out on the hot conductor and the current returning on the neutral. Under normal operation these currents are equal. If some current leaks to ground (through a person or another path), the currents no longer match. The GFCI detects this imbalance and quickly trips, opening the circuit to cut power and prevent shock. It doesn’t ground the equipment, bypass the fault, or try to rebalance currents; its protective action is to interrupt the circuit when an imbalance is detected.

A GFCI protects by sensing the difference between the current going out on the hot conductor and the current returning on the neutral. Under normal operation these currents are equal. If some current leaks to ground (through a person or another path), the currents no longer match. The GFCI detects this imbalance and quickly trips, opening the circuit to cut power and prevent shock. It doesn’t ground the equipment, bypass the fault, or try to rebalance currents; its protective action is to interrupt the circuit when an imbalance is detected.

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