Help with this : the field inside a conductor is zero therefore

In summary, the field inside a conductor is zero due to electrostatic shielding, where the rearrangement of free charges cancels out external fields. However, there can still be an electric potential inside a conductor and the shape of a conductor does not affect the field, but can affect the distribution of charges on its surface. In some cases, such as when a conductor is placed in a time-varying magnetic field, the field inside may not be zero. The field inside a conductor is indirectly related to the surface charge density, which affects the electric field on the surface and ultimately, the field inside through electrostatic shielding.
  • #1
colombo
13
0
the field inside a conductor is zero therefore
A. the potential inside the conductor is zero
B. the potential cannot be zero
C. The potential inside the conductor is the same as the potential just outside the conductor (on the surface)
D. the potential inside the conductor cannot be defined if the field is zero
E. none of the above is true


I don't get this question. help with this or give me some idea abt it...
 
Physics news on Phys.org
  • #2
Start by asking yourself what is the definition of the Electric Field in terms of the Electric Potential?
 
  • #3


As a scientist, it is important to understand the relationship between electric fields and potential in a conductor. In a conductor, charges are free to move and redistribute themselves in response to an external electric field. This results in an electric field inside the conductor that is equal to zero, as the charges have redistributed in a way that cancels out any internal field. Therefore, statement A is correct. The potential inside a conductor is zero because no work is required to move a charge within a conductor due to the absence of an internal electric field.

Statement B is incorrect because, as stated above, the potential inside a conductor is indeed zero. However, statement C is also correct. The potential inside a conductor is the same as the potential on its surface, as there is no electric field to create a potential difference within the conductor.

Statement D is incorrect because the potential inside a conductor can still be defined, even if the electric field is zero. This is because the potential is a measure of the work required to move a charge between two points, and in a conductor, no work is required to move a charge within it.

Therefore, the correct answer is A and C. It is important to understand the concept of electric fields and potential in a conductor as it has many practical applications in electronics and circuitry. I recommend further research and study to fully understand the relationship between these two concepts.
 

Question 1: Why is the field inside a conductor zero?

The field inside a conductor is zero because the free charges in the conductor rearrange themselves in such a way that the resulting field cancels out the external field. This is known as electrostatic shielding.

Question 2: Does this mean there is no electric potential inside a conductor?

No, there can still be an electric potential inside a conductor. The electric potential is defined as the work done per unit charge to move a charge from one point to another. Even though the field inside a conductor is zero, there can still be a potential difference between two points within the conductor.

Question 3: How does the shape of a conductor affect the electric field inside?

The shape of a conductor does not affect the electric field inside. As long as the conductor is in electrostatic equilibrium, the field inside will always be zero regardless of its shape. However, the shape can affect the distribution of charges on the surface of the conductor.

Question 4: Can the field inside a conductor ever be non-zero?

In most cases, the field inside a conductor will be zero due to electrostatic shielding. However, in certain situations such as when the conductor is placed in a time-varying magnetic field, the field inside may not be zero. This is known as induced electric fields.

Question 5: How is the field inside a conductor related to the surface charge density?

The field inside a conductor is indirectly related to the surface charge density. The surface charge density is the amount of charge per unit area on the surface of the conductor. This charge density affects the electric field on the surface of the conductor, which in turn affects the field inside the conductor through electrostatic shielding.

Similar threads

  • Introductory Physics Homework Help
Replies
17
Views
385
Replies
22
Views
1K
  • Introductory Physics Homework Help
Replies
10
Views
717
  • Introductory Physics Homework Help
Replies
19
Views
1K
  • Introductory Physics Homework Help
Replies
11
Views
378
  • Introductory Physics Homework Help
Replies
13
Views
1K
  • Introductory Physics Homework Help
Replies
18
Views
1K
  • Introductory Physics Homework Help
Replies
2
Views
1K
  • Introductory Physics Homework Help
Replies
4
Views
887
  • Introductory Physics Homework Help
Replies
1
Views
142
Back
Top