The answer to 'difference between GFCI outlet and regular outlet' is that a GFCI (ground fault circuit interrupter) outlet is a special type of electrical outlet designed to protect against electrical shock hazards, while a regular outlet is a standard electrical outlet without this safety feature. GFCI outlets constantly monitor the electrical current flowing in and out of the outlet, and if they detect a difference (which could indicate a ground fault), they will instantly shut off the power to prevent electric shock.
GFCI outlets are required in areas of the home that are more prone to moisture and water exposure, such as bathrooms, kitchens, laundry rooms, and outdoor areas. They provide an extra layer of protection that can help prevent serious injuries or even electrocution. Regular outlets, on the other hand, do not have this ground fault protection and are typically used in drier areas of the home where the risk of electric shock is lower.