Podcast
Questions and Answers
What happens to the electric flux through an area element when it is tilted by 90 degrees to the electric field?
What happens to the electric flux through an area element when it is tilted by 90 degrees to the electric field?
- The electric flux remains constant.
- The electric flux becomes zero. (correct)
- The electric flux is maximized.
- The electric flux is minimized.
How is the electric flux ($ heta$) defined mathematically?
How is the electric flux ($ heta$) defined mathematically?
- $ au = E imes rac{ ho}{A}$
- $ au = rac{ ho}{eta}$
- $eta = E heta imes rac{ ho}{A}$
- $ ewline ext{ } ewline ext{ } ewline ext{ } ewline ext{ } ewline \Phi = ext{ } E ig| ext{A} ig| ext{ } ewline ext{ } ewline ext{ } ewline ext{ } ewline ext{ } ewline \cdot \ ig| ext{n} ig| ext{ } ewline ext{ } ewline ext{ } ewline ext{ } ewline ext{ } ewline ext{ } ewline e$ and.$ $ heta$ (correct)
What is the role of the angle $ heta$ in the electric flux equation?
What is the role of the angle $ heta$ in the electric flux equation?
- It affects the distance between field lines.
- It determines the orientation of the area element. (correct)
- It is irrelevant to the calculation of electric flux.
- It indicates the strength of the electric field.
Which statement about the area element vector $ ext{ΔS}$ is true for a closed surface?
Which statement about the area element vector $ ext{ΔS}$ is true for a closed surface?
Why is it necessary to treat an area element as a vector?
Why is it necessary to treat an area element as a vector?
What factor affects the number of electric field lines crossing an area element?
What factor affects the number of electric field lines crossing an area element?
In a stream, if a ring is held normal to the flow, what happens to the amount of water flowing through it?
In a stream, if a ring is held normal to the flow, what happens to the amount of water flowing through it?
What denotes the normal direction of a planar area element?
What denotes the normal direction of a planar area element?
Flashcards
Electric Flux
Electric Flux
The number of electric field lines passing through a given area.
Area Element Vector
Area Element Vector
The orientation of an area element is described by a vector perpendicular to its surface.
Angle between Electric Field and Area Element
Angle between Electric Field and Area Element
The angle between the electric field vector and the area element vector.
Projected Area
Projected Area
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Gauss's Law
Gauss's Law
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Gauss's Law for no enclosed charge
Gauss's Law for no enclosed charge
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Closed Surface
Closed Surface
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Outward Normal Vector
Outward Normal Vector
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