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Questions and Answers
What physical quantity does electric flux quantify?
What physical quantity does electric flux quantify?
- The electric potential difference across a surface.
- The amount of electric field penetrating a surface. (correct)
- The speed of charged particles in an electric field.
- The resistance of a material to electric current.
What is the mathematical relationship between electric flux ($\Phi_E$), electric field (E), and area (A) when the electric field is perpendicular to the surface?
What is the mathematical relationship between electric flux ($\Phi_E$), electric field (E), and area (A) when the electric field is perpendicular to the surface?
- $\Phi_E = A/E$
- $\Phi_E = E + A$
- $\Phi_E = E \cdot A$ (correct)
- $\Phi_E = E/A$
Electric flux is defined as the total number of electric field lines passing through a given area in what period of time?
Electric flux is defined as the total number of electric field lines passing through a given area in what period of time?
- An infinitely short time interval.
- The duration of the electric field's existence.
- The time it takes for light to cross the area.
- One unit of time. (correct)
What happens to the electric flux if the area through which the electric field passes is doubled, assuming the electric field remains constant and perpendicular to the area?
What happens to the electric flux if the area through which the electric field passes is doubled, assuming the electric field remains constant and perpendicular to the area?
Electric flux is represented by which symbol?
Electric flux is represented by which symbol?
If the electric field is NOT perpendicular to the surface, how is electric flux calculated?
If the electric field is NOT perpendicular to the surface, how is electric flux calculated?
Consider a scenario where the electric field strength increases while the area through which it passes decreases proportionally. What happens to the electric flux?
Consider a scenario where the electric field strength increases while the area through which it passes decreases proportionally. What happens to the electric flux?
What is the electric flux through a closed surface that encloses no charge?
What is the electric flux through a closed surface that encloses no charge?
If both the electric field strength and the area of the surface are doubled, what is the effect on the electric flux, assuming the field remains perpendicular to the surface?
If both the electric field strength and the area of the surface are doubled, what is the effect on the electric flux, assuming the field remains perpendicular to the surface?
Which of the following factors does NOT directly affect the electric flux through a surface?
Which of the following factors does NOT directly affect the electric flux through a surface?
Flashcards
Electric Flux
Electric Flux
The total number of electric field lines passing a given area per unit time.
Electric Flux Formula (Perpendicular Field)
Electric Flux Formula (Perpendicular Field)
Electric flux is the product of the electric field and the area of the surface when the electric field E is perpendicular to the surface area A.
What does Electric Flux Measure?
What does Electric Flux Measure?
A measure of how much of the electric field passes through a given surface.
Study Notes
Electric Flux
- Electric flux is the total number of electric field lines passing a given area in a unit time.
- The amount of electric field penetrating a surface area is the electric flux.
- Electric flux is the product of the electric field and the surface area.
- ΦE is the symbol for electric flux.
- The product of A and E is the electric flux when the electric field E is perpendicular to the surface having a total area A.
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