Electric flux inside a conductor

In summary, the conversation discusses the concept of electric flux within a solid conductor, specifically when a gaussian surface is placed within the conductor. The textbook suggests that the electric flux within the gaussian surface will be zero due to the fact that there is no electric field inside a conductor. This is because charges would move with the field until it reaches a zero value, in accordance with Ohm's law.
  • #1
Ibraheem
51
2
Hello,

If we have a solid conductor with all of its charge on its surface, and we then enclose some its charge with a gaussian surface that goes inside the solid conductor, will the part of the gaussian surface within the conductor have any electric flux? My textbook says it will have zero electric flux since the electric field inside any conductor is zero, but I still find hard to accept this since the enclosed charge will have electric field pointing toward the inside of the solid conductor.I have attached an image of a situation for a thick uniformly, positively charged conducting plate.(note: I did not include the charges on the other sides of the plate)
 

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  • #2
Hi Ibraheem,

If there would be a field inside the conductor, charges would simply move with that field until the field reaches a zero value. So the book is right: a conductor means no resistance means no field. In a way it is Ohm's law !
 

FAQ: Electric flux inside a conductor

What is electric flux inside a conductor?

Electric flux inside a conductor refers to the total amount of electric field lines passing through a given area inside a conductor. It is a measure of the strength of the electric field inside the conductor.

How is electric flux inside a conductor calculated?

Electric flux inside a conductor is calculated by taking the dot product of the electric field and the surface area vector. This calculation takes into account the direction and magnitude of the electric field lines passing through the given area.

Why is electric flux inside a conductor important?

The electric flux inside a conductor is important because it helps determine the distribution of charges inside the conductor. It also plays a role in understanding the behavior of electric fields and their effect on the conductor.

Can the electric flux inside a conductor ever be negative?

No, the electric flux inside a conductor cannot be negative. This is because electric flux is defined as the dot product of the electric field and the surface area vector, which means it is always a positive quantity.

How does the shape and size of a conductor affect the electric flux inside?

The shape and size of a conductor can affect the electric flux inside by changing the distribution of charges and the magnitude of the electric field. A larger conductor will have a larger surface area for electric field lines to pass through, resulting in a higher electric flux. The shape of the conductor can also influence the direction and strength of the electric field inside.

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