Why there must be an electric field inside a conductor?

Suggest why there must be an electric field inside a current-carrying conductor. To have a current, electrons must be accelerated along the wire and so an electric force must act on them. This is provided by the electric field. … Gravitational force is always attractive while electric force can be repulsive.

What is true if there is an electric field inside a conductor?

The electric field is zero inside a conductor. Just outside a conductor, the electric field lines are perpendicular to its surface, ending or beginning on charges on the surface. Any excess charge resides entirely on the surface or surfaces of a conductor.

Why is there an electric field in a wire?

A wire is essentially a long, thin conductor yet electrons do indeed flow so there must be an electric field.

Why must electric field lines be normal to conducting surface in electrostatics?

Electric field is defined as the gradient of potential and the surface of a conductor has a constant potential. Therefore, there is no field along the surface of the conductor and hence the electrostatic field at the surface of a charged conductor should be Normal to the surface at every point.

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Why must electric field lines be perpendicular to the surface of a conductor?

Because electric field lines must be perpendicular to the surface of conductor, otherwise there would be a non zero component of electric field along the surface of conductor and charges could not be at rest.

Is the electric field constant in a conductor?

So, to answer your question, the field is constant in magnitude and is directed along the direction of the conductor.

Why electric field inside a conductor is zero?

Electric field is zero inside a charged conductor. For a charged conductor, the charges will lie on the surface of the conductor.So, there will not be any charges inside the conductor. When there is no charge there will not be electric field.

Why electric field inside a current carrying conductor is zero?

A conductor has mobile charge carriers – this, after all, is what makes it a conductor. As a result, even if a electric field is set up inside a conductor, the charge carriers will move in response. … The process will stop only when the two fields balance out – leaving no net electric field inside the conductor.

Why the interior of a conductor can have no excess charge in the static situation?

The interior of a conductor can have no excess charge in the static situation. A neutral conductor has equal amounts of positive and negative charges in every small volume or surface element. … This means there is no net charge at any point inside the conductor, and any excess charge must reside at the surface.

Why must the electrostatic potential inside a hollow charged conductor be the same at every point?

The potential difference between the shells depends on charge of inner shell. Reason: Potential due to charge of outer shell remains same at every point inside the sphere.

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Why is electrostatic potential constant throughout the conductor?

As inside the conductor the electric field is zero, so no work is done against the electric field to bring a charge particle from one point to another. … Because there is no potential difference between any two points inside the conductor, the electrostatic potential is constant throughout the volume of the conductor.

When a conductor is held in an electric field the field inside the conductor is always?

Electric field inside a conductor is always zero.