how a GFCI receptacle works if there is no ground wire connect to it

Install Gfci Plug With No Ground Wire

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What is GFCI and How it Works? Ground Fault Circuit Interrupter | Gfci

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What is GFCI and How it Works? Ground Fault Circuit Interrupter | Gfci
What is GFCI and How it Works? Ground Fault Circuit Interrupter | Gfci

HOW TO INSTALL A GFCI OUTLET - YouTube
HOW TO INSTALL A GFCI OUTLET - YouTube

how a GFCI receptacle works if there is no ground wire connect to it
how a GFCI receptacle works if there is no ground wire connect to it