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The field is zero inside only if any charge is evenly distributed on the surface. That's a mathematical theorem, sorry I don't have the proof handy. But when you measure the electric field inside a charged sphere, the charge you use might be large enough to redistribute the surface charge. In this case the electric field will not be zero. Only if you measure at the centre.
What else can I help you with?
What is the relationship between the electric field and surface charge at a conductor?
The electric field inside a conductor is zero, and the surface charge resides on the outer surface of the conductor. This means that the electric field at the surface of a conductor is perpendicular to the surface and proportional to the surface charge density.
Why electric field lines are always perpendicular to the surface of the conductor?
Electric field lines are always perpendicular to the surface of a conductor because in electrostatic equilibrium, the electric field inside a conductor is zero. Any component of the electric field parallel to the surface would result in the flow of charges until the electric field is perpendicular to the surface, ensuring a state of equilibrium.
What is the electric field strength just outside the flat surface of the conductor?
The electric field strength just outside the flat surface of a conductor is zero.
What is the relationship between the central charge and the electric field distribution within a spherical conductor with a cavity?
The central charge of a spherical conductor with a cavity affects the electric field distribution within the conductor. The electric field inside the conductor is zero, and the charge is distributed on the surface. The central charge influences how the charge is distributed on the surface, which in turn affects the electric field distribution within the conductor.
What is the electric field inside an infinitely long cylindrical conductor with radius r and uniform surface charge density?
The electric field inside an infinitely long cylindrical conductor with radius r and uniform surface charge density is zero.
What is the relationship between the electric field and surface charge at a conductor?
The electric field inside a conductor is zero, and the surface charge resides on the outer surface of the conductor. This means that the electric field at the surface of a conductor is perpendicular to the surface and proportional to the surface charge density.
Why electric field lines are always perpendicular to the surface of the conductor?
Electric field lines are always perpendicular to the surface of a conductor because in electrostatic equilibrium, the electric field inside a conductor is zero. Any component of the electric field parallel to the surface would result in the flow of charges until the electric field is perpendicular to the surface, ensuring a state of equilibrium.
What is the electric field strength just outside the flat surface of the conductor?
The electric field strength just outside the flat surface of a conductor is zero.
What is the relationship between the central charge and the electric field distribution within a spherical conductor with a cavity?
The central charge of a spherical conductor with a cavity affects the electric field distribution within the conductor. The electric field inside the conductor is zero, and the charge is distributed on the surface. The central charge influences how the charge is distributed on the surface, which in turn affects the electric field distribution within the conductor.
What is the electric field inside an infinitely long cylindrical conductor with radius r and uniform surface charge density?
The electric field inside an infinitely long cylindrical conductor with radius r and uniform surface charge density is zero.
Does charge inside a conductor exert electric field on another charge placed outside the conductor?
Yes, the charges inside a conductor will rearrange when an external charge is placed near or on the surface of the conductor, resulting in an induced electric field inside the conductor. This induced electric field will influence the external charge's behavior without the need for direct contact between the charges.
Why aconductor is an equipotential surface?
A conductor is an equipotential surface because the electric field inside a conductor is zero in electrostatic equilibrium. This means that all points on the conductor have the same electric potential, making it an equipotential surface. Any excess charge on the conductor redistributes itself to ensure this equal potential.
What happens when a conductor is placed in a constant electric field?
When a conductor is placed in a constant electric field, the free charges within the conductor will rearrange themselves until reaching equilibrium. This results in the charges accumulating on the surface of the conductor, creating an induced electric field that cancels out the external field within the conductor. The conductor will then remain in a stable state as long as the external electric field remains constant.
Why is there no electric field inside a conductor?
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.
What is the distribution of the electric field inside a hollow conductor?
The electric field inside a hollow conductor is zero.
What happens when an isolated conductor is statically charged?
When a conductor is statically charged, excess charge accumulates on its surface. This charge distribution creates an electric field within the conductor that repels like charges and attracts opposite charges. As a result, the charges redistribute themselves on the surface of the conductor until the electric field inside the conductor becomes zero.
Why should the Electric field inside a conductor zero?
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.
