What is the electric field at the center (in N/C)?

In summary, an electric field is a vector quantity that describes the force experienced by a charged particle. The strength of the electric field at a point is determined by the amount and distribution of charge in the surrounding space. The unit for electric field is newtons per coulomb (N/C) and it can be calculated using the formula E = kQ/r^2. The electric field at the center can be affected by various factors such as the amount and distribution of charge, distance from the charge, presence of other charges, and the medium in which the charges are placed.
  • #1
NegaChin
13
0
A total of eight tiny conducting spheres, each carrying a charge of -110 nC, are placed one each at the corners of a cube 1.2 m on a side. Find the potential at the center (in V).

What is the electric field at the center (in N/C)?
 
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  • #2
Just add up the eight potentials.
Use symmetry for E.
 
  • #3
I understand, but how do I find the potential to begin with?
 
  • #4
[tex]V=\frac{q}{4\pi\epsilon_0r}[/tex]
 
  • #5
Just a Clarification

should leave the q as neg. and nC or convert to C and make positive?;
 

1. What is an electric field?

An electric field is a physical quantity that describes the force experienced by a charged particle in an electric field. It is a vector quantity, meaning it has both magnitude and direction.

2. How is the electric field at a point determined?

The electric field at a point is determined by the amount and distribution of charge in the surrounding space. The electric field is stronger when the charge is closer and weaker when the charge is farther away from the point of interest.

3. What is the unit for electric field?

The unit for electric field is newtons per coulomb (N/C). This means that for every unit of charge (coulomb) in the electric field, there is a certain amount of force (newtons) acting on it.

4. How is the electric field at the center calculated?

The electric field at the center can be calculated by using the formula E = kQ/r^2, where k is the Coulomb's constant, Q is the charge at the center, and r is the distance from the charge to the center.

5. What factors can affect the electric field at the center?

The electric field at the center can be affected by the amount and distribution of charge, the distance from the charge to the center, and the presence of other charges in the surrounding space. It can also be affected by the medium in which the charges are placed, as some materials may have a greater or lesser effect on the electric field.

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