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In a region of space where the electric field is uniform, what is the electric f

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Question: In a region of space where the electric field is uniform, what is the electric flux through a surface area A oriented perpendicular to the field?

Options:

  1. EA
  2. 0
  3. E/A
  4. A/E

Correct Answer: EA

Solution: 

The electric flux Φ through a surface area A in a uniform electric field E is given by Φ = EA when the surface is perpendicular to the field.

In a region of space where the electric field is uniform, what is the electric f

Practice Questions

Q1
In a region of space where the electric field is uniform, what is the electric flux through a surface area A oriented perpendicular to the field?
  1. EA
  2. 0
  3. E/A
  4. A/E

Questions & Step-by-Step Solutions

In a region of space where the electric field is uniform, what is the electric flux through a surface area A oriented perpendicular to the field?
Correct Answer: Φ = EA
  • Step 1: Understand what electric flux is. Electric flux (Φ) measures how much electric field passes through a surface.
  • Step 2: Identify the uniform electric field (E). This means the strength and direction of the electric field are the same everywhere in that region.
  • Step 3: Recognize the surface area (A) you are considering. This is the flat area through which the electric field is passing.
  • Step 4: Note that the surface is oriented perpendicular to the electric field. This means the surface is facing directly into the electric field.
  • Step 5: Use the formula for electric flux when the surface is perpendicular to the field: Φ = EA.
  • Step 6: Calculate the electric flux by multiplying the electric field strength (E) by the area (A).
  • Electric Flux – Electric flux is a measure of the quantity of electric field lines passing through a given surface area.
  • Uniform Electric Field – A uniform electric field has the same magnitude and direction at all points in the region.
  • Surface Orientation – The orientation of the surface relative to the electric field affects the calculation of electric flux.
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