Inside an outlet there are conductors: hot, neutral, and sometimes ground. The rest of the inside of an outlet is insulator, to keep these conductors from shorting.
The potential inside a conductor is zero.
Inside a building, you connect the conductor to the AC outlet ground (the circular hole in the wall outlet). Outside the building, the conductor can be connected (soldered, for example) to a copper pipe which has more than six feet underground in soil. Warning: never work with electricity, no matter that it is just for a second, unless you have taken safety classes and basic lessons in electricity. People go to school to be an electrician.
Metal is a conductor and the electricity will easily flow through it.
The electric field inside a hollow conductor is zero.
Inside a conductor, the electric charges are free to move and redistribute themselves to cancel out any external electric field. This results in no net electric field inside the conductor.
Yes. The static electric field inside a charged conductor is zero, no matter what the voltage is between the conductor and the rest of the world.
The electric potential inside a conductor is constant and does not depend on the properties of the conductor. This is known as the electrostatic equilibrium condition. The properties of the conductor, such as its shape and material, only affect the distribution of charges on its surface, not the electric potential inside.
The electric potential inside a conductor is constant and equal to the potential at its surface. This is because the electric field inside a conductor is zero, and any excess charge on the conductor redistributes itself to maintain equilibrium with the surrounding environment.
Do that
To safely convert a 2-prong outlet to a 3-prong outlet without a ground wire, you can use a GFCI outlet or hire a licensed electrician to install a grounding conductor.
The electric field inside a conductor is zero because any electric field that is present will cause the charges inside the conductor to move until they distribute themselves in such a way that cancels out the electric field. This redistribution of charges ensures that the net electric field inside the conductor is zero in equilibrium.
Under electrostatic conditions, there is no electric field inside a solid conductor because the free electrons in the conductor redistribute themselves to cancel out any external electric field, resulting in a net electric field of zero inside the conductor.