Linked Questions

4
votes
1answer
30k views

Why charges reside on the surface on conductor? [duplicate]

In a hollow conductor and in a spherical shell the charges reside on its surface and there is no electric field inside it.Please tell me the reason behind it.
0
votes
3answers
3k views

Why the electric field inside a conductor is zero? [duplicate]

In electromagnetism books, such as Griffiths or the like, when they talk about the properties of conductors in case of electrostatics they say that the electric field inside a conductor is zero.
1
vote
2answers
228 views

Electric Field Inside of a Conductor [duplicate]

I have seen many explanations for why the net electric field inside of a conductor is zero (assuming only electrical forces are acting on the particles inside of it). These explanations typically say ...
-1
votes
2answers
92 views

Why is field inside a conductor zero? [duplicate]

No external fields penetrate the conductor as they are canceled at the outer surface by the induced charge. My question is why is field inside conductor zero when there is no other field inside the ...
0
votes
1answer
70 views

Why should there be electrostatic equilibrium inside a conductor? [duplicate]

I have been trying to understand why the net electric field inside a conductor is zero regardless of the exterbal electric field. But why should equilibrium ever be attained?
5
votes
3answers
2k views

Is the electrostatic field inside of any closed, uniformly charged surface zero?

We know that a simple application of Gauss's law tells us that the field inside of a uniformly charged spherical shell is zero. Does this hold for all uniformly charged closed surfaces? If so, how ...
0
votes
3answers
13k views

If the electric field inside a conductor is zero then how does current flow through it? [duplicate]

I read in a book that when a conductor is placed in an electric field then the free electrons in the conductor will align in such a manner that an electric field is induced which is opposite to the ...
0
votes
2answers
2k views

Electric fields in/around conductors

So according to my notes, the field inside a conductor is zero. But what, exactly, is meant by inside? I think we are in electrostatics for the purpose of this question. The reason it is zero is ...
1
vote
1answer
2k views

Charged metal sphere surrounded by dielectric shell

Hi I have the following electrostatic question involving linear dielectric material. Given a metal sphere of radius $a$ which carries a charge $Q$ and is surrounded out to a radius $b$ by a linear ...
1
vote
2answers
411 views

electric field inside a conducting body [closed]

From Gauss' Law, we know that the electric field inside a solid conducting sphere varies linearly with the distance from the centre. But we also know that electric field inside a conductor is zero. ...
2
votes
1answer
228 views

Why doesn't the potential drop as a $E=\nabla V$ inside a circuit when there is no resistor?

Considering that an electric field exists outside a battery and inside a circuit, shouldn't the potential drop while we move along the wire even if there is no resistor ($E=\nabla V$)? I am asking ...
0
votes
1answer
61 views

Calculating Electric field using Gauss law

I solved a question in electricity using the Gauss law, but comparing with others revealed the possibility that my answer is incorrect. We have a Sphere with radius $R$ and Charge density $\rho$. The ...
0
votes
1answer
63 views

How does induced current work if a wire is supposedly neutral?

I know that a changing magnetic field creates an electric field, and a moving magnet near a coil will cause a current flow, but I'm wondering how this can happen if a wire and each atom in the wire is ...
0
votes
1answer
23 views

Charge of conductive sphere around charge

Consider suspending a charge inside a conductive sphere: The answers to this question state that there will be a charge of +Q induced on the outside of the sphere (and a charge of -Q on the inside). ...
0
votes
2answers
28 views

Does the electric field equals to zero in the case of having a charged wire inside?

I have a cylinder charged along its length, and a charged wire inside it. The electric field inside the conductor is zero, but how is it when I have a charged wire inside it?