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.
What is the electric field inside a wire?
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 electric field in a wire 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 is there no electric field inside a hollow conductor?
So, the electric field inside any hollow conducting surface is zero provided that there are no charges enclosed by that region. In electrostatics free charges in a good conductor reside only on the surface. So the free charge inside the conductor is zero. So the field in it is caused by charges on the surface.
Why is there no electric field inside a charged sphere?
Electric field lines start from positive charges and terminate at negative charges. Every electric field line generated by the inner sphere terminates in the inner surface of the outer sphere. This is why there is no electric field inside a charged spherical conductor.
Why do electric field lines never cross each other?
The direction of electric field line generally changes from point to point and hence are curved lines. And this implies two directions of electric field intensity at the point of intersection, which is not possible. Hence, two field lines never cross each other.
Why do electric field lines never form closed loops?
If the electric field lines form a closed loop, these lines must originate and terminate on the same charge which is not possible because electric field lines always move from positive to negative. Therefore, we say electrostatic field lines never form closed loops.
Does the electric field exists inside a charged spherical shell?
since all the charge is distributed on the surface of the spherical shell so according to Gauss law there will not be any electric flux inside the spherical shell, because the charge inclosed by the spherical shell is zero, so there will not be any electric field present inside the spherical shell.
Why do the electric field lines?
Electric field lines reveal information about the direction (and the strength) of an electric field within a region of space. If the lines cross each other at a given location, then there must be two distinctly different values of electric field with their own individual direction at that given location.
How do you keep the electric field constant in a wire?
To keep it flowing against the resistance in each thin section, you have to keep pushing with the same force. The electric field is constant in a wire, across the cross section of the wire, if the electric field is not rapidly alternating.
How does an electric field affect the current in a circuit?
In fact, there must be a constant electric field throughout the wire in order to drive a constant current (unless we are looking at superconductors, in which case the electrons will just be able to follow the circuit forever without an electric field, but we aren’t).
Is the electric field strength the same all along the wire?
So, if you take a resistive wire and connect your voltage source, and a constant current flows, then yes, it follows that the field strength is the same all along the wire.
What is the relationship between electric field and potential?
Electric Field mainly depends upon the electric potential. as long as electrical potential remains constant, electric field remains constant. In a wire, electric potential is constant for example: we have single phase connection then we know that single phase has voltage range 220 – 240V.