Electronic device having conductive exterior member and method for detecting leak current regarding same

An electronic device comprising:

• a housing including a front plate, a back plate disposed opposite to the front plate, and a side member surrounding a space between the front plate and the back plate, wherein at least portion of the back plate is formed of a conductive material, and wherein the side member includes an opening;
• a touch screen display disposed between the front plate and the back plate;
• a printed circuit board (PCB) disposed inside the space and including a ground plane;
• a first circuit electrically connected to the ground plane to cut off leakage current from the PCB;
• a conductive path formed between the first circuit and a first point of the back plate;
• a second circuit electrically connected to the ground plane and a second point of the back plate to detect leakage current flowing from the PCB to the back plate;
• a female connector disposed in the opening and including a plurality of pins, the female connector configured to receive an external male connector;
• and
• a processor electrically connected to the second circuit and the female connector, the processor configured to transmit intensity of the leakage current detected by the second circuit to the external male connector connected to the female connector.